127 lines
3.2 KiB
C++
127 lines
3.2 KiB
C++
/*
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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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#ifndef PLAYLISTUNDOCOMMANDS_H
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#define PLAYLISTUNDOCOMMANDS_H
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#include "config.h"
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#include <QCoreApplication>
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#include <QList>
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#include <QUndoStack>
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#include "playlistitem.h"
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class Playlist;
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namespace PlaylistUndoCommands {
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enum Types {
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Type_RemoveItems = 0,
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};
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class Base : public QUndoCommand {
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Q_DECLARE_TR_FUNCTIONS(PlaylistUndoCommands)
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public:
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explicit Base(Playlist *playlist);
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protected:
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Playlist *playlist_;
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};
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class InsertItems : public Base {
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public:
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explicit InsertItems(Playlist *playlist, const PlaylistItemPtrList &items, int pos, bool enqueue = false, bool enqueue_next = false);
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void undo() override;
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void redo() override;
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// When load is async, items have already been pushed, so we need to update them.
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// This function try to find the equivalent item, and replace it with the new (completely loaded) one.
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// Return true if the was found (and updated), false otherwise
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bool UpdateItem(const PlaylistItemPtr &updated_item);
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private:
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PlaylistItemPtrList items_;
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int pos_;
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bool enqueue_;
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bool enqueue_next_;
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};
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class RemoveItems : public Base {
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public:
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explicit RemoveItems(Playlist *playlist, int pos, int count);
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int id() const override { return Type_RemoveItems; }
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void undo() override;
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void redo() override;
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bool mergeWith(const QUndoCommand *other) override;
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private:
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struct Range {
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Range(int pos, int count) : pos_(pos), count_(count) {}
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int pos_;
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int count_;
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PlaylistItemPtrList items_;
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};
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QList<Range> ranges_;
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};
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class MoveItems : public Base {
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public:
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explicit MoveItems(Playlist *playlist, const QList<int> &source_rows, int pos);
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void undo() override;
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void redo() override;
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private:
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QList<int> source_rows_;
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int pos_;
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};
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class ReOrderItems : public Base {
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public:
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explicit ReOrderItems(Playlist *playlist, const PlaylistItemPtrList &new_items);
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void undo() override;
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void redo() override;
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private:
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PlaylistItemPtrList old_items_;
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PlaylistItemPtrList new_items_;
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};
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class SortItems : public ReOrderItems {
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public:
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explicit SortItems(Playlist *playlist, int column, Qt::SortOrder order, const PlaylistItemPtrList &new_items);
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};
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class ShuffleItems : public ReOrderItems {
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public:
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explicit ShuffleItems(Playlist *playlist, const PlaylistItemPtrList &new_items);
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};
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} // namespace
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#endif // PLAYLISTUNDOCOMMANDS_H
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