Clementine-audio-player-Mac.../src/ui/albumcoverchoicecontroller.h

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/* This file is part of Clementine.
Copyright 2010, David Sansome <me@davidsansome.com>
Clementine 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.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ALBUMCOVERCHOICECONTROLLER_H
#define ALBUMCOVERCHOICECONTROLLER_H
#include <QAction>
#include <QList>
#include <QMenu>
#include <QWidget>
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class AlbumCoverFetcher;
class AlbumCoverSearcher;
class Application;
class CoverFromURLDialog;
class QFileDialog;
class Song;
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struct CoverSearchStatistics;
// Controller for the common album cover related menu options.
class AlbumCoverChoiceController : public QWidget {
Q_OBJECT
public:
static const char* kLoadImageFileFilter;
static const char* kSaveImageFileFilter;
static const char* kAllFilesFilter;
AlbumCoverChoiceController(QWidget* parent = nullptr);
~AlbumCoverChoiceController();
void SetApplication(Application* app);
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// Getters for all QActions implemented by this controller.
QAction* cover_from_file_action() const { return cover_from_file_; }
QAction* cover_to_file_action() const { return cover_to_file_; }
QAction* cover_from_url_action() const { return cover_from_url_; }
QAction* search_for_cover_action() const { return search_for_cover_; }
QAction* unset_cover_action() const { return unset_cover_; }
QAction* show_cover_action() const { return show_cover_; }
QAction* search_cover_auto_action() const { return search_cover_auto_; }
// Returns QAction* for every operation implemented by this controller.
// The list contains QAction* for:
// 1. loading cover from file
// 2. loading cover from URL
// 3. searching for cover using last.fm
// 4. unsetting the cover manually
// 5. showing the cover in original size
QList<QAction*> GetAllActions();
// All of the methods below require a currently selected song as an
// input parameter. Also - LoadCoverFromFile, LoadCoverFromURL,
// SearchForCover, UnsetCover and SaveCover all update manual path
// of the given song in library to the new cover.
// Lets the user choose a cover from disk. If no cover will be chosen or the
// chosen
// cover will not be a proper image, this returns an empty string. Otherwise,
// the
// path to the chosen cover will be returned.
QString LoadCoverFromFile(Song* song);
// Shows a dialog that allows user to save the given image on disk. The image
// is supposed to be the cover of the given song's album.
void SaveCoverToFile(const Song& song, const QImage& image);
// Downloads the cover from an URL given by user. This returns the downloaded
// image
// or null image if something went wrong for example when user cancelled the
// dialog.
QString LoadCoverFromURL(Song* song);
// Lets the user choose a cover among all that have been found on last.fm.
// Returns the chosen cover or null cover if user didn't choose anything.
QString SearchForCover(Song* song);
// Returns a path which indicates that the cover has been unset manually.
QString UnsetCover(Song* song);
// Shows the cover of given song in it's original size.
void ShowCover(const Song& song);
bool ToggleCover(const Song& song);
// Search for covers automatically
void SearchCoverAutomatically(const Song& song);
// Saves the chosen cover as manual cover path of this song in library.
void SaveCover(Song* song, const QString& cover);
// Saves the cover that the user picked through a drag and drop operation.
QString SaveCover(Song* song, const QDropEvent* e);
// Saves the given image in cache as a cover for 'artist' - 'album'.
// The method returns path of the cached image.
QString SaveCoverInCache(const QString& artist, const QString& album,
const QImage& image);
static bool CanAcceptDrag(const QDragEnterEvent* e);
signals:
void AutomaticCoverSearchDone();
private slots:
void AlbumCoverFetched(quint64 id, const QImage& image,
const CoverSearchStatistics& statistics);
void AlbumCoverPopupClosed();
private:
QDialog* ShowCoverPrivate(const Song& song);
QString GetInitialPathForFileDialog(const Song& song,
const QString& filename);
static bool IsKnownImageExtension(const QString& suffix);
static QSet<QString>* sImageExtensions;
Application* app_;
AlbumCoverSearcher* cover_searcher_;
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AlbumCoverFetcher* cover_fetcher_;
QFileDialog* save_file_dialog_;
CoverFromURLDialog* cover_from_url_dialog_;
QAction* cover_from_file_;
QAction* cover_to_file_;
QAction* separator_;
QAction* cover_from_url_;
QAction* search_for_cover_;
QAction* unset_cover_;
QAction* show_cover_;
QAction* search_cover_auto_;
QMap<quint64, Song> cover_fetching_tasks_;
QDialog* album_cover_popup_;
};
#endif // ALBUMCOVERCHOICECONTROLLER_H