266 lines
8.3 KiB
C++
266 lines
8.3 KiB
C++
/* This file is part of Clementine.
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Copyright 2010, David Sansome <me@davidsansome.com>
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Clementine 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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Clementine 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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You should have received a copy of the GNU General Public License
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along with Clementine. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PLAYLISTVIEW_H
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#define PLAYLISTVIEW_H
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#include <QBasicTimer>
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#include <QProxyStyle>
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#include <QTreeView>
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#include <memory>
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#include "playlist.h"
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class QCommonStyle;
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class Application;
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class DynamicPlaylistControls;
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class LibraryBackend;
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class PlaylistHeader;
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class RadioLoadingIndicator;
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class RatingItemDelegate;
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class QTimeLine;
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// This proxy style works around a bug/feature introduced in Qt 4.7's QGtkStyle
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// that uses Gtk to paint row backgrounds, ignoring any custom brush or palette
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// the caller set in the QStyleOption. That breaks our currently playing track
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// animation, which relies on the background painted by Qt to be transparent.
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// This proxy style uses QCommonStyle to paint the affected elements.
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// This class is used by the global search view as well.
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class PlaylistProxyStyle : public QProxyStyle {
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public:
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PlaylistProxyStyle();
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void drawControl(ControlElement element, const QStyleOption* option,
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QPainter* painter, const QWidget* widget) const;
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void drawPrimitive(PrimitiveElement element, const QStyleOption* option,
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QPainter* painter, const QWidget* widget) const;
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private:
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std::unique_ptr<QCommonStyle> common_style_;
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};
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class PlaylistView : public QTreeView {
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Q_OBJECT
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public:
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~PlaylistView();
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enum BackgroundImageType { Default, None, Custom, AlbumCover };
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PlaylistView(QWidget* parent = nullptr);
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static const int kStateVersion;
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// Constants for settings: are persistent, values should not be changed
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static const char* kSettingBackgroundImageType;
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static const char* kSettingBackgroundImageFilename;
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static const int kDefaultBlurRadius;
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static const int kDefaultOpacityLevel;
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static ColumnAlignmentMap DefaultColumnAlignment();
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void SetApplication(Application* app);
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void SetItemDelegates(LibraryBackend* backend);
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void SetPlaylist(Playlist* playlist);
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void RemoveSelected(bool deleting_from_disk);
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void SetReadOnlySettings(bool read_only) { read_only_settings_ = read_only; }
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Playlist* playlist() const { return playlist_; }
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BackgroundImageType background_image_type() const {
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return background_image_type_;
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}
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Qt::Alignment column_alignment(int section) const;
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// QTreeView
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void drawTree(QPainter* painter, const QRegion& region) const;
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void drawRow(QPainter* painter, const QStyleOptionViewItem& option,
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const QModelIndex& index) const;
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void setModel(QAbstractItemModel* model);
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public slots:
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void ReloadSettings();
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void StopGlowing();
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void StartGlowing();
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void JumpToCurrentlyPlayingTrack();
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void JumpToLastPlayedTrack();
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void closeEditor(QWidget* editor, QAbstractItemDelegate::EndEditHint hint);
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void DynamicModeChanged(bool dynamic);
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void SetColumnAlignment(int section, Qt::Alignment alignment);
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void CopyCurrentSongToClipboard() const;
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void CurrentSongChanged(const Song& new_song, const QString& uri,
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const QImage& cover_art);
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void PlayerStopped();
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signals:
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void PlayItem(const QModelIndex& index);
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void PlayPause();
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void RightClicked(const QPoint& global_pos, const QModelIndex& index);
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void SeekForward();
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void SeekBackward();
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void FocusOnFilterSignal(QKeyEvent* event);
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void BackgroundPropertyChanged();
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void ColumnAlignmentChanged(const ColumnAlignmentMap& alignment);
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protected:
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// QWidget
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void keyPressEvent(QKeyEvent* event);
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void contextMenuEvent(QContextMenuEvent* e);
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void hideEvent(QHideEvent* event);
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void showEvent(QShowEvent* event);
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void timerEvent(QTimerEvent* event);
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void mouseMoveEvent(QMouseEvent* event);
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void mousePressEvent(QMouseEvent* event);
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void leaveEvent(QEvent*);
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void paintEvent(QPaintEvent* event);
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void dragMoveEvent(QDragMoveEvent* event);
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void dragEnterEvent(QDragEnterEvent* event);
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void dragLeaveEvent(QDragLeaveEvent* event);
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void dropEvent(QDropEvent* event);
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void resizeEvent(QResizeEvent* event);
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bool eventFilter(QObject* object, QEvent* event);
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void focusInEvent(QFocusEvent* event);
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// QAbstractScrollArea
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void scrollContentsBy(int dx, int dy);
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// QAbstractItemView
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void rowsInserted(const QModelIndex& parent, int start, int end);
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private slots:
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void LoadGeometry();
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void LoadRatingLockStatus();
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void DirtyGeometry();
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void DirtySettings();
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void SaveGeometry(QSettings* settings);
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void SetRatingLockStatus(bool state);
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void GlowIntensityChanged();
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void InhibitAutoscrollTimeout();
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void MaybeAutoscroll();
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void InvalidateCachedCurrentPixmap();
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void PlaylistDestroyed();
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void SaveSettings(QSettings* s);
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void StretchChanged(bool stretch);
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void RatingHoverIn(const QModelIndex& index, const QPoint& pos);
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void RatingHoverOut();
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void FadePreviousBackgroundImage(qreal value);
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private:
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void ReloadBarPixmaps();
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QList<QPixmap> LoadBarPixmap(const QString& filename);
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void UpdateCachedCurrentRowPixmap(QStyleOptionViewItem option,
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const QModelIndex& index);
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void set_background_image_type(BackgroundImageType bg) {
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background_image_type_ = bg;
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emit BackgroundPropertyChanged();
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}
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// Save image as the background_image_ after applying some modifications
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// (opacity, ...).
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// Should be used instead of modifying background_image_ directly
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void set_background_image(const QImage& image);
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private:
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static const int kGlowIntensitySteps;
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static const int kAutoscrollGraceTimeout;
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static const int kDropIndicatorWidth;
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static const int kDropIndicatorGradientWidth;
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QList<int> GetEditableColumns();
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QModelIndex NextEditableIndex(const QModelIndex& current);
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QModelIndex PrevEditableIndex(const QModelIndex& current);
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void RepositionDynamicControls();
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Application* app_;
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PlaylistProxyStyle* style_;
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Playlist* playlist_;
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PlaylistHeader* header_;
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bool setting_initial_header_layout_;
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bool upgrading_from_qheaderview_;
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bool read_only_settings_;
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int upgrading_from_version_;
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bool header_loaded_;
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bool background_initialized_;
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BackgroundImageType background_image_type_;
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// Used if background image is a filemane
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QString background_image_filename_;
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// Stores the background image to be displayed. As we want this image to be
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// particular (in terms of format, opacity), you should probably use
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// set_background_image_type instead of modifying background_image_ directly
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QImage background_image_;
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int blur_radius_;
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int opacity_level_;
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QImage current_song_cover_art_;
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QPixmap cached_scaled_background_image_;
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// For fading when image change
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QPixmap previous_background_image_;
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qreal previous_background_image_opacity_;
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QTimeLine* fade_animation_;
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// To know if we should redraw the background or not
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int last_height_;
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int last_width_;
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bool force_background_redraw_;
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bool glow_enabled_;
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bool currently_glowing_;
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QBasicTimer glow_timer_;
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int glow_intensity_step_;
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QModelIndex last_current_item_;
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QRect last_glow_rect_;
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RatingItemDelegate* rating_delegate_;
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QTimer* inhibit_autoscroll_timer_;
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bool inhibit_autoscroll_;
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bool currently_autoscrolling_;
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int row_height_; // Used to invalidate the currenttrack_bar pixmaps
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QList<QPixmap> currenttrack_bar_left_;
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QList<QPixmap> currenttrack_bar_mid_;
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QList<QPixmap> currenttrack_bar_right_;
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QPixmap currenttrack_play_;
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QPixmap currenttrack_pause_;
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QRegion current_paint_region_;
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QPixmap cached_current_row_;
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QRect cached_current_row_rect_;
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int cached_current_row_row_;
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QPixmap cached_tree_;
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int drop_indicator_row_;
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bool drag_over_;
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bool dirty_geometry_;
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bool dirty_settings_;
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bool ratings_locked_; // To store Ratings section lock status
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DynamicPlaylistControls* dynamic_controls_;
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ColumnAlignmentMap column_alignment_;
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};
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#endif // PLAYLISTVIEW_H
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