509 lines
16 KiB
C++
509 lines
16 KiB
C++
/* This file is part of Clementine.
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Copyright 2010, David Sansome <me@davidsansome.com>
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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 "playlistdelegates.h"
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#include <QDateTime>
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#include <QDir>
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#include <QFuture>
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#include <QHeaderView>
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#include <QHelpEvent>
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#include <QLineEdit>
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#include <QLinearGradient>
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#include <QPainter>
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#include <QScrollBar>
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#include <QTextDocument>
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#include <QToolTip>
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#include <QWhatsThis>
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#include <QtConcurrentRun>
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#include "core/logging.h"
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#include "core/player.h"
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#include "core/utilities.h"
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#include "library/librarybackend.h"
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#include "queue.h"
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#include "ui/iconloader.h"
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#include "widgets/trackslider.h"
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#ifdef Q_OS_DARWIN
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#include "core/mac_utilities.h"
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#endif // Q_OS_DARWIN
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const int QueuedItemDelegate::kQueueBoxBorder = 1;
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const int QueuedItemDelegate::kQueueBoxCornerRadius = 3;
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const int QueuedItemDelegate::kQueueBoxLength = 30;
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const QRgb QueuedItemDelegate::kQueueBoxGradientColor1 = qRgb(102, 150, 227);
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const QRgb QueuedItemDelegate::kQueueBoxGradientColor2 = qRgb(77, 121, 200);
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const int QueuedItemDelegate::kQueueOpacitySteps = 10;
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const float QueuedItemDelegate::kQueueOpacityLowerBound = 0.4;
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const int PlaylistDelegateBase::kMinHeight = 19;
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QueuedItemDelegate::QueuedItemDelegate(QObject* parent, int indicator_column)
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: QStyledItemDelegate(parent), indicator_column_(indicator_column) {}
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void QueuedItemDelegate::paint(QPainter* painter,
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const QStyleOptionViewItem& option,
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const QModelIndex& index) const {
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QStyledItemDelegate::paint(painter, option, index);
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if (index.column() == indicator_column_) {
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bool ok = false;
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const int queue_pos = index.data(Playlist::Role_QueuePosition).toInt(&ok);
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if (ok && queue_pos != -1) {
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float opacity = kQueueOpacitySteps - qMin(kQueueOpacitySteps, queue_pos);
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opacity /= kQueueOpacitySteps;
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opacity *= 1.0 - kQueueOpacityLowerBound;
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opacity += kQueueOpacityLowerBound;
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DrawBox(painter, option.rect, option.font, QString::number(queue_pos + 1),
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kQueueBoxLength, opacity);
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}
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}
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}
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void QueuedItemDelegate::DrawBox(QPainter* painter, const QRect& line_rect,
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const QFont& font, const QString& text,
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int width, float opacity) const {
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QFont smaller = font;
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smaller.setPointSize(smaller.pointSize() - 1);
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smaller.setBold(true);
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if (width == -1) width = QFontMetrics(font).width(text + " ");
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QRect rect(line_rect);
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rect.setLeft(rect.right() - width - kQueueBoxBorder);
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rect.setWidth(width);
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rect.setTop(rect.top() + kQueueBoxBorder);
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rect.setBottom(rect.bottom() - kQueueBoxBorder - 1);
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QRect text_rect(rect);
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text_rect.setBottom(text_rect.bottom() + 1);
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QLinearGradient gradient(rect.topLeft(), rect.bottomLeft());
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gradient.setColorAt(0.0, kQueueBoxGradientColor1);
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gradient.setColorAt(1.0, kQueueBoxGradientColor2);
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// Push painter state
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painter->save();
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painter->setOpacity(opacity);
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// Turn on antialiasing
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painter->setRenderHint(QPainter::Antialiasing);
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// Draw the box
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painter->translate(0.5, 0.5);
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painter->setPen(QPen(Qt::white, 1));
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painter->setBrush(gradient);
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painter->drawRoundedRect(rect, kQueueBoxCornerRadius, kQueueBoxCornerRadius);
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// Draw the text
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painter->setFont(smaller);
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painter->drawText(rect, Qt::AlignCenter, text);
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painter->translate(-0.5, -0.5);
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// Pop painter state
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painter->restore();
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}
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int QueuedItemDelegate::queue_indicator_size(const QModelIndex& index) const {
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if (index.column() == indicator_column_) {
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const int queue_pos = index.data(Playlist::Role_QueuePosition).toInt();
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if (queue_pos != -1) {
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return kQueueBoxLength + kQueueBoxBorder * 2;
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}
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}
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return 0;
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}
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PlaylistDelegateBase::PlaylistDelegateBase(QObject* parent,
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const QString& suffix)
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: QueuedItemDelegate(parent),
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view_(qobject_cast<QTreeView*>(parent)),
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suffix_(suffix) {}
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QString PlaylistDelegateBase::displayText(const QVariant& value,
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const QLocale&) const {
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QString text;
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switch (static_cast<QMetaType::Type>(value.type())) {
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case QMetaType::Int: {
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int v = value.toInt();
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if (v > 0) text = QString::number(v);
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break;
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}
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case QMetaType::Float:
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case QMetaType::Double: {
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double v = value.toDouble();
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if (v > 0) text = QString::number(v);
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break;
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}
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default:
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text = value.toString();
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break;
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}
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if (!text.isNull() && !suffix_.isNull()) text += " " + suffix_;
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return text;
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}
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QSize PlaylistDelegateBase::sizeHint(const QStyleOptionViewItem& option,
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const QModelIndex& index) const {
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QSize size = QueuedItemDelegate::sizeHint(option, index);
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if (size.height() < kMinHeight) size.setHeight(kMinHeight);
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return size;
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}
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void PlaylistDelegateBase::paint(QPainter* painter,
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const QStyleOptionViewItem& option,
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const QModelIndex& index) const {
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QueuedItemDelegate::paint(painter, Adjusted(option, index), index);
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// Stop after indicator
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if (index.column() == Playlist::Column_Title) {
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if (index.data(Playlist::Role_StopAfter).toBool()) {
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QRect rect(option.rect);
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rect.setRight(rect.right() - queue_indicator_size(index));
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DrawBox(painter, rect, option.font, tr("stop"));
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}
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}
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}
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QStyleOptionViewItem PlaylistDelegateBase::Adjusted(
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const QStyleOptionViewItem& option, const QModelIndex& index) const {
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if (!view_) return option;
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QPoint top_left(-view_->horizontalScrollBar()->value(),
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-view_->verticalScrollBar()->value());
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if (view_->header()->logicalIndexAt(top_left) != index.column())
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return option;
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QStyleOptionViewItem 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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bool PlaylistDelegateBase::helpEvent(QHelpEvent* event, QAbstractItemView* view,
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const QStyleOptionViewItem& option,
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const QModelIndex& index) {
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// This function is copied from QAbstractItemDelegate, and changed to show
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// displayText() in the tooltip, rather than the index's naked
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// Qt::ToolTipRole text.
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Q_UNUSED(option);
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if (!event || !view) return false;
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QHelpEvent* he = static_cast<QHelpEvent*>(event);
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QString text = displayText(index.data(), QLocale::system());
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// Special case: we want newlines in the comment tooltip
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if (index.column() == Playlist::Column_Comment) {
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text = index.data(Qt::ToolTipRole).toString().toHtmlEscaped();
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text.replace("\\r\\n", "<br />");
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text.replace("\\n", "<br />");
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text.replace("\r\n", "<br />");
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text.replace("\n", "<br />");
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}
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if (text.isEmpty() || !he) return false;
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switch (event->type()) {
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case QEvent::ToolTip: {
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QRect displayed_text;
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QSize real_text;
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bool is_elided = false;
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real_text = sizeHint(option, index);
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displayed_text = view->visualRect(index);
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is_elided = displayed_text.width() < real_text.width();
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if (is_elided) {
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QToolTip::showText(he->globalPos(), text, view);
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} else { // in case that another text was previously displayed
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QToolTip::hideText();
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}
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return true;
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}
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case QEvent::QueryWhatsThis:
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return true;
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case QEvent::WhatsThis:
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QWhatsThis::showText(he->globalPos(), text, view);
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return true;
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default:
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break;
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}
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return false;
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}
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QString LengthItemDelegate::displayText(const QVariant& value,
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const QLocale&) const {
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bool ok = false;
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qint64 nanoseconds = value.toLongLong(&ok);
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if (ok && nanoseconds > 0) return Utilities::PrettyTimeNanosec(nanoseconds);
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return QString();
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}
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QString SizeItemDelegate::displayText(const QVariant& value,
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const QLocale&) const {
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bool ok = false;
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int bytes = value.toInt(&ok);
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if (ok) return Utilities::PrettySize(bytes);
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return QString();
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}
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QString DateItemDelegate::displayText(const QVariant& value,
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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) return QString();
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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 LastPlayedItemDelegate::displayText(const QVariant& value,
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const QLocale& locale) const {
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bool ok = false;
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const int time = value.toInt(&ok);
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if (!ok || time == -1) return tr("Never");
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return Utilities::Ago(time, locale);
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}
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QString FileTypeItemDelegate::displayText(const QVariant& value,
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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) return tr("Unknown");
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return Song::TextForFiletype(type);
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}
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QWidget* TextItemDelegate::createEditor(QWidget* parent,
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const QStyleOptionViewItem& option,
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const QModelIndex& index) const {
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return new QLineEdit(parent);
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}
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RatingItemDelegate::RatingItemDelegate(QObject* parent)
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: PlaylistDelegateBase(parent) {}
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void RatingItemDelegate::paint(QPainter* painter,
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const QStyleOptionViewItem& option,
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const QModelIndex& index) const {
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// Draw the background
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option.widget->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &option,
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painter, option.widget);
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// Don't draw anything else if the user can't set the rating of this item
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if (!index.data(Playlist::Role_CanSetRating).toBool()) return;
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const bool hover = mouse_over_index_.isValid() &&
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(mouse_over_index_ == index ||
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(selected_indexes_.contains(mouse_over_index_) &&
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selected_indexes_.contains(index)));
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const double rating =
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(hover ? RatingPainter::RatingForPos(mouse_over_pos_, option.rect)
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: index.data().toDouble());
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painter_.Paint(painter, option.rect, rating);
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}
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QSize RatingItemDelegate::sizeHint(const QStyleOptionViewItem& option,
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const QModelIndex& index) const {
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QSize size = PlaylistDelegateBase::sizeHint(option, index);
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size.setWidth(size.height() * RatingPainter::kStarCount);
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return size;
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}
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QString RatingItemDelegate::displayText(const QVariant& value,
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const QLocale&) const {
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if (value.isNull() || value.toDouble() <= 0) return QString();
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// Round to the nearest 0.5
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const double rating =
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float(int(value.toDouble() * RatingPainter::kStarCount * 2 + 0.5)) / 2;
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return QString::number(rating, 'f', 1);
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}
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TagCompletionModel::TagCompletionModel(LibraryBackend* backend,
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Playlist::Column column)
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: QStringListModel() {
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QString col = database_column(column);
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if (!col.isEmpty()) {
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setStringList(backend->GetAll(col));
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}
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}
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QString TagCompletionModel::database_column(Playlist::Column column) {
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switch (column) {
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case Playlist::Column_Artist:
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return "artist";
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case Playlist::Column_Album:
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return "album";
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case Playlist::Column_AlbumArtist:
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return "albumartist";
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case Playlist::Column_Composer:
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return "composer";
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case Playlist::Column_Performer:
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return "performer";
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case Playlist::Column_Grouping:
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return "grouping";
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case Playlist::Column_Genre:
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return "genre";
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default:
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qLog(Warning) << "Unknown column" << column;
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return QString();
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}
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}
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static TagCompletionModel* InitCompletionModel(LibraryBackend* backend,
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Playlist::Column column) {
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return new TagCompletionModel(backend, column);
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}
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TagCompleter::TagCompleter(LibraryBackend* backend, Playlist::Column column,
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QLineEdit* editor)
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: QCompleter(editor), editor_(editor) {
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QFuture<TagCompletionModel*> future =
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QtConcurrent::run(&InitCompletionModel, backend, column);
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NewClosure(future, this, SLOT(ModelReady(QFuture<TagCompletionModel*>)),
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future);
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}
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TagCompleter::~TagCompleter() { model()->deleteLater(); }
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void TagCompleter::ModelReady(QFuture<TagCompletionModel*> future) {
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TagCompletionModel* model = future.result();
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setModel(model);
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setCaseSensitivity(Qt::CaseInsensitive);
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editor_->setCompleter(this);
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}
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QWidget* TagCompletionItemDelegate::createEditor(QWidget* parent,
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const QStyleOptionViewItem&,
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const QModelIndex&) const {
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QLineEdit* editor = new QLineEdit(parent);
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new TagCompleter(backend_, column_, editor);
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return editor;
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}
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QString NativeSeparatorsDelegate::displayText(const QVariant& value,
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const QLocale&) const {
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const QString string_value = value.toString();
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QUrl url;
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if (value.type() == QVariant::Url) {
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url = value.toUrl();
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} else if (string_value.contains("://")) {
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url = QUrl::fromEncoded(string_value.toLatin1());
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} else {
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return QDir::toNativeSeparators(string_value);
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}
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if (url.scheme() == "file") {
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return QDir::toNativeSeparators(url.toLocalFile());
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}
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return string_value;
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}
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SongSourceDelegate::SongSourceDelegate(QObject* parent, Player* player)
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: PlaylistDelegateBase(parent), player_(player) {}
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QString SongSourceDelegate::displayText(const QVariant& value,
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const QLocale&) const {
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return QString();
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}
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QPixmap SongSourceDelegate::LookupPixmap(const QUrl& url,
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const QSize& size) const {
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QPixmap pixmap;
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if (cache_.find(url.scheme(), &pixmap)) {
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return pixmap;
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}
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QIcon icon;
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const UrlHandler* handler = player_->HandlerForUrl(url);
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if (handler) {
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icon = handler->icon();
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} else {
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if (url.scheme() == "spotify") {
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icon = IconLoader::Load("spotify", IconLoader::Provider);
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} else if (url.scheme() == "file") {
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icon = IconLoader::Load("folder-sound", IconLoader::Base);
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} else if (url.host() == "api.jamendo.com") {
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icon = IconLoader::Load("jamendo", IconLoader::Provider);
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} else if (url.host() == "api.soundcloud.com") {
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icon = IconLoader::Load("soundcloud", IconLoader::Provider);
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} else if (url.scheme() == "cdda") {
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icon = IconLoader::Load("media-optical", IconLoader::Base);
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}
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}
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pixmap = icon.pixmap(size.height());
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cache_.insert(url.scheme(), pixmap);
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return pixmap;
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}
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void SongSourceDelegate::paint(QPainter* painter,
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const QStyleOptionViewItem& option,
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const QModelIndex& index) const {
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// Draw the background
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PlaylistDelegateBase::paint(painter, option, index);
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QStyleOptionViewItem option_copy(option);
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initStyleOption(&option_copy, index);
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// Find the pixmap to use for this URL
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const QUrl& url = index.data().toUrl();
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QPixmap pixmap = LookupPixmap(url, option_copy.decorationSize);
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float device_pixel_ratio = 1.0f;
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#ifdef Q_OS_DARWIN
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QWidget* parent_widget = reinterpret_cast<QWidget*>(parent());
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device_pixel_ratio = mac::GetDevicePixelRatio(parent_widget);
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#endif
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// Draw the pixmap in the middle of the rectangle
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QRect draw_rect(QPoint(0, 0),
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option_copy.decorationSize / device_pixel_ratio);
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draw_rect.moveCenter(option_copy.rect.center());
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painter->drawPixmap(draw_rect, pixmap);
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}
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