modules/gui/qt4/components/playlist/selector.hpp

   1 /*****************************************************************************
   2  * selector.hpp : Playlist source selector
   3  ****************************************************************************
   4  * Copyright (C) 2000-2009 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *          Jean-Baptiste Kempf
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #ifndef _PLSEL_H_
  26 #define _PLSEL_H_
  27
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include "qt4.hpp"
  33 #include "util/customwidgets.hpp" /* QFramelessButton */
  34
  35 #include <QTreeWidget>
  36
  37 class QHBoxLayout;
  38 class QPainter;
  39 class QTreeWidgetItem;
  40 class PlaylistWidget;
  41 class QLabel;
  42
  43 enum SelectorItemType {
  44     CATEGORY_TYPE,
  45     SD_TYPE,
  46     PL_ITEM_TYPE,
  47     SQL_ML_TYPE,
  48 };
  49
  50 enum SpecialData {
  51     IS_PODCAST = 1,
  52     IS_PL,
  53     IS_ML
  54 };
  55
  56 enum {
  57     TYPE_ROLE = Qt::UserRole + 1,
  58     NAME_ROLE,           //QString
  59     LONGNAME_ROLE,       //QString
  60     PL_ITEM_ROLE,        //playlist_item_t*
  61     PL_ITEM_ID_ROLE,     //playlist_item_t->i_id
  62     IN_ITEM_ROLE,        //input_item_t->i_id
  63     SPECIAL_ROLE         //SpecialData
  64 };
  65
  66 enum ItemAction {
  67     ADD_ACTION,
  68     RM_ACTION
  69 };
  70
  71
  72 class SelectorActionButton : public QFramelessButton
  73 {
  74 protected:
  75     virtual void paintEvent( QPaintEvent * );
  76 };
  77
  78 class PLSelItem : public QWidget
  79 {
  80     Q_OBJECT
  81 public:
  82     PLSelItem( QTreeWidgetItem*, const QString& );
  83
  84     void setText( const QString& text ) { lbl->setText( text ); }
  85     QString text() const { return lbl->text(); }
  86
  87     void addAction( ItemAction, const QString& toolTip = 0 );
  88     QTreeWidgetItem *treeItem() { return qitem; }
  89
  90 public slots:
  91     void showAction() { if( lblAction ) lblAction->show();  }
  92     void hideAction() { if( lblAction ) lblAction->hide(); }
  93
  94 private slots:
  95     void triggerAction() { emit action( this ); }
  96
  97 signals:
  98     void action( PLSelItem* );
  99
 100 private:
 101     inline void enterEvent( QEvent* ){ showAction(); }
 102     inline void leaveEvent( QEvent* ){ hideAction(); }
 103
 104     QTreeWidgetItem*     qitem;
 105     QFramelessButton* lblAction;
 106     QLabel*              lbl;
 107     QHBoxLayout*         layout;
 108 };
 109
 110 Q_DECLARE_METATYPE( playlist_item_t *);
 111 Q_DECLARE_METATYPE( input_item_t *);
 112 class PLSelector: public QTreeWidget
 113 {
 114     Q_OBJECT
 115 public:
 116     PLSelector( QWidget *p, intf_thread_t *_p_intf );
 117     virtual ~PLSelector();
 118
 119     void getCurrentSelectedItem( int *type, QString *name );
 120
 121 protected:
 122     virtual void drawBranches ( QPainter *, const QRect &, const QModelIndex & ) const;
 123     virtual void dragMoveEvent ( QDragMoveEvent * event );
 124     virtual bool dropMimeData ( QTreeWidgetItem *, int, const QMimeData *, Qt::DropAction );
 125     virtual QStringList mimeTypes () const;
 126     virtual void wheelEvent(QWheelEvent *e);
 127
 128 private:
 129     void createItems();
 130     PLSelItem * addItem ( SelectorItemType type, const char* str,
 131             bool drop = false, QTreeWidgetItem* parentItem = 0 );
 132     PLSelItem * addPodcastItem( playlist_item_t *p_item );
 133
 134     inline PLSelItem * itemWidget( QTreeWidgetItem * );
 135
 136     intf_thread_t    *p_intf;
 137     QTreeWidgetItem  *podcastsParent;
 138     int               podcastsParentId;
 139     QTreeWidgetItem  *curItem;
 140
 141 private slots:
 142     void setSource( QTreeWidgetItem *item );
 143     void plItemAdded( int, int );
 144     void plItemRemoved( int );
 145     void inputItemUpdate( input_item_t * );
 146     void podcastAdd( PLSelItem* );
 147     void podcastRemove( PLSelItem* );
 148
 149 signals:
 150     void categoryActivated( playlist_item_t *, bool );
 151 };
 152
 153 #endif