modules/gui/qt4/components/playlist/icon_view.cpp

   1 /*****************************************************************************
   2  * icon_view.cpp : Icon view for the Playlist
   3  ****************************************************************************
   4  * Copyright © 2010 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors:         Jean-Baptiste Kempf <jb@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #include "components/playlist/icon_view.hpp"
  25 #include "components/playlist/playlist_model.hpp"
  26 #include "input_manager.hpp"
  27
  28 #include <QApplication>
  29 #include <QPainter>
  30 #include <QRect>
  31 #include <QStyleOptionViewItem>
  32 #include <QFontMetrics>
  33
  34 #include "assert.h"
  35
  36 #define RECT_SIZE           100
  37 #define ART_SIZE            64
  38 #define OFFSET              (RECT_SIZE-64)/2
  39 #define ITEMS_SPACING       10
  40 #define ART_RADIUS          5
  41
  42 void PlListViewItemDelegate::paint( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const
  43 {
  44     painter->setRenderHints( QPainter::Antialiasing | QPainter::SmoothPixmapTransform );
  45
  46     /*if( option.state & QStyle::State_Selected )
  47          painter->fillRect(option.rect, option.palette.highlight());*/
  48     QApplication::style()->drawPrimitive( QStyle::PE_PanelItemViewItem, &option, painter );
  49
  50     PLItem *currentItem = static_cast<PLItem*>( index.internalPointer() );
  51     assert( currentItem );
  52
  53     QPixmap pix;
  54     QString url = InputManager::decodeArtURL( currentItem->inputItem() );
  55
  56     if( !url.isEmpty() && pix.load( url ) )
  57     {
  58         pix = pix.scaled( ART_SIZE, ART_SIZE, Qt::KeepAspectRatioByExpanding );
  59     }
  60     else
  61     {
  62         pix = QPixmap( ":/noart64" );
  63     }
  64
  65     QRect artRect = option.rect.adjusted( OFFSET - 1, 0, - OFFSET, - OFFSET *2 );
  66     QPainterPath artRectPath;
  67     artRectPath.addRoundedRect( artRect, ART_RADIUS, ART_RADIUS );
  68
  69     // Draw the drop shadow
  70     painter->save();
  71     painter->setOpacity( 0.7 );
  72     painter->setBrush( QBrush( Qt::gray ) );
  73     painter->drawRoundedRect( artRect.adjusted( 2, 2, 2, 2 ), ART_RADIUS, ART_RADIUS );
  74     painter->restore();
  75
  76     // Draw the art pixmap
  77     painter->setClipPath( artRectPath );
  78     painter->drawPixmap( artRect, pix );
  79     painter->setClipping( false );
  80
  81     QColor text = qApp->palette().text().color();
  82     QString title = qfu( input_item_GetTitleFbName( currentItem->inputItem() ) );
  83     QString artist = qfu( input_item_GetArtist( currentItem->inputItem() ) );
  84
  85     painter->setPen( text );
  86     painter->setFont( QFont( "Verdana", 7, QFont::Bold ) );
  87     QFontMetrics fm = painter->fontMetrics();
  88     QRect titleRect = option.rect.adjusted( 1, ART_SIZE + 4, 0, -1 );
  89     titleRect.setHeight( fm.height() + 2 );
  90
  91     painter->drawText( titleRect, fm.elidedText( title, Qt::ElideRight, titleRect.width() ),
  92                        QTextOption( Qt::AlignCenter ) );
  93
  94     painter->setPen( text.lighter( 240 ) );
  95     painter->setFont( QFont( "Verdana", 7 ) );
  96     fm = painter->fontMetrics();
  97     QRect artistRect = option.rect.adjusted( 1, ART_SIZE + 4 + titleRect.height(), -1, -1 );
  98
  99     painter->drawText( artistRect, fm.elidedText( artist, Qt::ElideRight, artistRect.width() ),
 100                        QTextOption( Qt::AlignCenter ) );
 101 }
 102
 103 QSize PlListViewItemDelegate::sizeHint ( const QStyleOptionViewItem & option, const QModelIndex & index ) const
 104 {
 105     return QSize( RECT_SIZE, RECT_SIZE);
 106 }
 107
 108
 109 PlIconView::PlIconView( PLModel *model, QWidget *parent ) : QListView( parent )
 110 {
 111     setModel( model );
 112     setViewMode( QListView::IconMode );
 113     setMovement( QListView::Static );
 114     setResizeMode( QListView::Adjust );
 115     setGridSize( QSize( RECT_SIZE, RECT_SIZE ) );
 116     setUniformItemSizes( true );
 117     setSpacing( ITEMS_SPACING );
 118     setWrapping( true );
 119     setSelectionMode( QAbstractItemView::ExtendedSelection );
 120     setAcceptDrops( true );
 121
 122     PlListViewItemDelegate *pl = new PlListViewItemDelegate();
 123     setItemDelegate( pl );
 124
 125     CONNECT( this, activated( const QModelIndex & ), this, activate( const QModelIndex & ) );
 126 }
 127
 128 void PlIconView::activate( const QModelIndex & index )
 129 {
 130     if( model()->hasChildren( index ) )
 131         setRootIndex( index );
 132     else
 133     {
 134         PLModel *plModel = qobject_cast<PLModel*>( model() );
 135         if( !plModel ) return;
 136         plModel->activateItem( index );
 137     }
 138 }