Initial commit.
This commit is contained in:
Jonas Kvinge
475
src/playlist/playlistdelegates.cpp
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475
src/playlist/playlistdelegates.cpp
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/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2010, David Sansome <me@davidsansome.com>
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*
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* Strawberry 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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*
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* Strawberry 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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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "config.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 <QLinearGradient>
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#include <QLineEdit>
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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 "playlistdelegates.h"
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#include "queue.h"
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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 "core/iconloader.h"
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#include "collection/collectionbackend.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, const QStyleOptionViewItem &option, 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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painter->setOpacity(opacity);
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DrawBox(painter, option.rect, option.font, QString::number(queue_pos + 1), kQueueBoxLength);
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painter->setOpacity(1.0);
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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, const QFont &font, const QString &text, int width) 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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// 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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}
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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, const QString &suffix)
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: QueuedItemDelegate(parent), view_(qobject_cast<QTreeView*>(parent)), suffix_(suffix)
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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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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, 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, const QStyleOptionViewItem &option, 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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QStyleOptionViewItemV4 PlaylistDelegateBase::Adjusted(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(), -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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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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bool PlaylistDelegateBase::helpEvent(QHelpEvent *event, QAbstractItemView *view, const QStyleOptionViewItem &option, 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, 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::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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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, 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(QLocale::system().dateTimeFormat(QLocale::ShortFormat));
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}
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QString LastPlayedItemDelegate::displayText(const QVariant &value, 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)
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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, 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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QString SamplerateBitdepthItemDelegate::displayText(const QVariant &value, const QLocale &locale) const {
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return value.toString();
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}
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QWidget *TextItemDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const {
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return new QLineEdit(parent);
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}
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TagCompletionModel::TagCompletionModel(CollectionBackend *backend, Playlist::Column column) : 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: return "artist";
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case Playlist::Column_Album: return "album";
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case Playlist::Column_AlbumArtist: return "albumartist";
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case Playlist::Column_Composer: return "composer";
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case Playlist::Column_Performer: return "performer";
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case Playlist::Column_Grouping: return "grouping";
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case Playlist::Column_Genre: 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(CollectionBackend *backend, Playlist::Column column) {
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return new TagCompletionModel(backend, column);
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}
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TagCompleter::TagCompleter(CollectionBackend *backend, Playlist::Column column, QLineEdit *editor) : QCompleter(editor), editor_(editor) {
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QFuture<TagCompletionModel*> future = QtConcurrent::run(&InitCompletionModel, backend, column);
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NewClosure(future, this, SLOT(ModelReady(QFuture<TagCompletionModel*>)), future);
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}
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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, const QStyleOptionViewItem&, 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, 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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}
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else if (string_value.contains("://")) {
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url = QUrl::fromEncoded(string_value.toLatin1());
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}
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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) : PlaylistDelegateBase(parent), player_(player) {}
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QString SongSourceDelegate::displayText(const QVariant &value, const QLocale&) const {
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return QString();
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}
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QPixmap SongSourceDelegate::LookupPixmap(const QUrl &url, 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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}
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else {
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if (url.scheme() == "file") {
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icon = IconLoader::Load("folder-sound");
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}
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else if (url.scheme() == "cdda") {
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icon = IconLoader::Load("cd");
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}
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else {
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icon = IconLoader::Load("folder-sound");
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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, const QStyleOptionViewItem &option, 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), 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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