strawberry-audio-player-win.../src/core/standarditemiconloader.cpp

110 lines
3.5 KiB
C++

/*
* Strawberry Music Player
* This file was part of Clementine.
* Copyright 2012, David Sansome <me@davidsansome.com>
*
* Strawberry is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Strawberry is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include <QtGlobal>
#include <QObject>
#include <QAbstractItemModel>
#include <QStandardItem>
#include <QMap>
#include <QSet>
#include <QImage>
#include <QPixmap>
#include <QIcon>
#include "covermanager/albumcoverloader.h"
#include "standarditemiconloader.h"
StandardItemIconLoader::StandardItemIconLoader(AlbumCoverLoader *cover_loader, QObject *parent)
: QObject(parent),
cover_loader_(cover_loader),
model_(nullptr) {
cover_options_.desired_height_ = 16;
QObject::connect(cover_loader_, &AlbumCoverLoader::AlbumCoverLoaded, this, &StandardItemIconLoader::AlbumCoverLoaded);
}
void StandardItemIconLoader::SetModel(QAbstractItemModel *model) {
if (model_) {
QObject::disconnect(model_, &QAbstractItemModel::rowsAboutToBeRemoved, this, &StandardItemIconLoader::RowsAboutToBeRemoved);
}
model_ = model;
QObject::connect(model_, &QAbstractItemModel::rowsAboutToBeRemoved, this, &StandardItemIconLoader::RowsAboutToBeRemoved);
QObject::connect(model_, &QAbstractItemModel::modelAboutToBeReset, this, &StandardItemIconLoader::ModelReset);
}
void StandardItemIconLoader::LoadIcon(const QUrl &art_automatic, const QUrl &art_manual, QStandardItem *for_item) {
const quint64 id = cover_loader_->LoadImageAsync(cover_options_, art_automatic, art_manual);
pending_covers_[id] = for_item;
}
void StandardItemIconLoader::LoadIcon(const Song &song, QStandardItem *for_item) {
const quint64 id = cover_loader_->LoadImageAsync(cover_options_, song);
pending_covers_[id] = for_item;
}
void StandardItemIconLoader::RowsAboutToBeRemoved(const QModelIndex &parent, int begin, int end) {
for (QMap<quint64, QStandardItem*>::iterator it = pending_covers_.begin(); it != pending_covers_.end();) {
const QStandardItem *item = it.value();
const QStandardItem *item_parent = item->parent();
if (item_parent && item_parent->index() == parent && item->index().row() >= begin && item->index().row() <= end) {
cover_loader_->CancelTask(it.key());
it = pending_covers_.erase(it); // clazy:exclude=strict-iterators
}
else {
++it;
}
}
}
void StandardItemIconLoader::ModelReset() {
#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
cover_loader_->CancelTasks(QSet<quint64>(pending_covers_.keyBegin(), pending_covers_.keyEnd()));
#else
cover_loader_->CancelTasks(QSet<quint64>::fromList(pending_covers_.keys()));
#endif
pending_covers_.clear();
}
void StandardItemIconLoader::AlbumCoverLoaded(const quint64 id, const AlbumCoverLoaderResult &result) {
QStandardItem *item = pending_covers_.take(id);
if (!item) return;
if (result.success && !result.image_scaled.isNull() && result.type != AlbumCoverLoaderResult::Type_ManuallyUnset) {
item->setIcon(QIcon(QPixmap::fromImage(result.image_scaled)));
}
}