Initial commit.

src/dialogs/edittagdialog.h

@@ -0,0 +1,180 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2010, 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/>.
+ * 
+ */
+
+#ifndef EDITTAGDIALOG_H
+#define EDITTAGDIALOG_H
+
+#include "config.h"
+
+#include <QDialog>
+#include <QModelIndexList>
+
+#include "core/song.h"
+#include "covermanager/albumcoverloaderoptions.h"
+#include "musicbrainz/tagfetcher.h"
+#include "playlist/playlistitem.h"
+#include "widgets/lineedit.h"
+#include "trackselectiondialog.h"
+
+class Application;
+class AlbumCoverChoiceController;
+class CollectionBackend;
+class Ui_EditTagDialog;
+
+class QAbstractButton;
+class QItemSelection;
+class QLabel;
+class QPushButton;
+
+class EditTagDialog : public QDialog {
+  Q_OBJECT
+
+ public:
+  EditTagDialog(Application *app, QWidget *parent = nullptr);
+  ~EditTagDialog();
+
+  static const char *kHintText;
+  static const char *kSettingsGroup;
+
+  void SetSongs(const SongList &songs, const PlaylistItemList &items = PlaylistItemList());
+
+  PlaylistItemList playlist_items() const { return playlist_items_; }
+
+  void accept();
+
+signals:
+  void Error(const QString &message);
+
+protected:
+  bool eventFilter(QObject *o, QEvent *e);
+  void showEvent(QShowEvent*);
+  void hideEvent(QHideEvent*);
+
+ private:
+  struct Data {
+    Data(const Song &song = Song()) : original_(song), current_(song) {}
+
+    static QVariant value(const Song &song, const QString &id);
+    QVariant original_value(const QString &id) const {
+      return value(original_, id);
+    }
+    QVariant current_value(const QString &id) const {
+      return value(current_, id);
+    }
+
+    void set_value(const QString &id, const QVariant &value);
+
+    Song original_;
+    Song current_;
+  };
+
+ private slots:
+  void SetSongsFinished(QFuture<QList<EditTagDialog::Data>> future);
+  void AcceptFinished();
+
+  void SelectionChanged();
+  void FieldValueEdited();
+  void ResetField();
+  void ButtonClicked(QAbstractButton *button);
+  void ResetPlayCounts();
+#ifdef HAVE_GSTREAMER
+  void FetchTag();
+  void FetchTagSongChosen(const Song &original_song, const Song &new_metadata);
+#endif
+
+  void ArtLoaded(quint64 id, const QImage &scaled, const QImage &original);
+
+  void LoadCoverFromFile();
+  void SaveCoverToFile();
+  void LoadCoverFromURL();
+  void SearchForCover();
+  void UnsetCover();
+  void ShowCover();
+
+  void PreviousSong();
+  void NextSong();
+
+ private:
+  struct FieldData {
+    FieldData(QLabel *label = nullptr, QWidget *editor = nullptr, const QString &id = QString())
+        : label_(label), editor_(editor), id_(id) {}
+
+    QLabel *label_;
+    QWidget *editor_;
+    QString id_;
+  };
+
+  Song *GetFirstSelected();
+  void UpdateCoverOf(const Song &selected, const QModelIndexList &sel, const QString &cover);
+
+  bool DoesValueVary(const QModelIndexList &sel, const QString &id) const;
+  bool IsValueModified(const QModelIndexList &sel, const QString &id) const;
+
+  void InitFieldValue(const FieldData &field, const QModelIndexList &sel);
+  void UpdateFieldValue(const FieldData &field, const QModelIndexList &sel);
+  void UpdateModifiedField(const FieldData &field, const QModelIndexList &sel);
+  void ResetFieldValue(const FieldData &field, const QModelIndexList &sel);
+
+  void UpdateSummaryTab(const Song &song);
+  void UpdateStatisticsTab(const Song &song);
+
+  void UpdateUI(const QModelIndexList &sel);
+
+  bool SetLoading(const QString &message);
+  void SetSongListVisibility(bool visible);
+
+  // Called by QtConcurrentRun
+  QList<Data> LoadData(const SongList &songs) const;
+  void SaveData(const QList<Data> &data);
+
+private:
+  Ui_EditTagDialog *ui_;
+
+  Application *app_;
+  AlbumCoverChoiceController *album_cover_choice_controller_;
+
+  bool loading_;
+
+  PlaylistItemList playlist_items_;
+  QList<Data> data_;
+  QList<FieldData> fields_;
+
+  bool ignore_edits_;
+
+#ifdef HAVE_GSTREAMER
+  TagFetcher *tag_fetcher_;
+#endif
+
+  AlbumCoverLoaderOptions cover_options_;
+  quint64 cover_art_id_;
+  bool cover_art_is_set_;
+
+  // A copy of the original, unscaled album cover.
+  QImage original_;
+
+  QMenu *cover_menu_;
+
+  QPushButton *previous_button_;
+  QPushButton *next_button_;
+
+  TrackSelectionDialog *results_dialog_;
+};
+
+#endif  // EDITTAGDIALOG_H