src/columnlist.cpp

   1 /*
   2   Copyright (c) 2006 Gábor Lehel <illissius@gmail.com>
   3
   4   This library is free software; you can redistribute it and/or
   5   modify it under the terms of the GNU Library General Public
   6   License as published by the Free Software Foundation; either
   7   version 2 of the License, or (at your option) any later version.
   8
   9   This library is distributed in the hope that it will be useful,
  10   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12   Library General Public License for more details.
  13
  14   You should have received a copy of the GNU Library General Public License
  15   along with this library; see the file COPYING.LIB.  If not, write to
  16   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17   Boston, MA 02110-1301, USA.
  18 */
  19
  20 #include "columnlist.h"
  21
  22 #include "config-amarok.h"
  23 #include "amarokconfig.h"
  24
  25 #include "metabundle.h"
  26 #include "playlist.h"
  27
  28 #include <KVBox>
  29 #include <k3listview.h>
  30 #include <kpushbutton.h>
  31
  32 #include <q3header.h>
  33 #include <QPainter>
  34 #include <QToolTip>
  35 //Added by qt3to4:
  36 #include <Q3ValueList>
  37
  38
  39 class MyCheckListItem: public Q3CheckListItem
  40 {
  41     typedef Q3CheckListItem super;
  42     ColumnList *m_list;
  43 public:
  44     int column;
  45     MyCheckListItem( int c, Q3ListView *v, const QString &s, Type t, ColumnList *list ):
  46         super( v, s, t ), m_list( list ), column( c ) { }
  47     virtual void paintCell( QPainter * p, const QColorGroup &cg, int c, int w, int a )
  48     {
  49         QFont f = p->font();
  50         if( isOn() )
  51             f.setBold( !f.bold() );
  52         p->setFont( f );
  53         super::paintCell( p, cg, c, w, a );
  54     }
  55     virtual void stateChange( bool b )
  56     {
  57         super::stateChange( b );
  58         m_list->setChanged();
  59     }
  60     MyCheckListItem *itemAbove() { return static_cast<MyCheckListItem*>( Q3CheckListItem::itemAbove() ); }
  61     MyCheckListItem *itemBelow() { return static_cast<MyCheckListItem*>( Q3CheckListItem::itemBelow() ); }
  62 };
  63
  64 ColumnList::ColumnList( QWidget *parent, const char *name )
  65     : KHBox( parent), m_changed( true )
  66 {
  67     setObjectName( name );
  68     setSpacing( 5 );
  69
  70     KVBox *buttonbox = new KVBox( this );
  71
  72     m_up = new KPushButton( KGuiItem( QString(), "up" ), buttonbox );
  73     m_up->setToolTip( i18n( "Move column up" ) );
  74     connect( m_up, SIGNAL( clicked() ), this, SLOT( moveUp() ) );
  75
  76     m_down = new KPushButton( KGuiItem( QString(), "down" ), buttonbox );
  77     m_down->setToolTip( i18n( "Move column down" ) );
  78     connect( m_down, SIGNAL( clicked() ), this, SLOT( moveDown() ) );
  79
  80     m_list = new K3ListView( this );
  81     m_list->addColumn("");
  82     m_list->header()->hide();
  83     m_list->setSelectionMode( Q3ListView::Single );
  84     m_list->setResizeMode( Q3ListView::LastColumn );
  85     m_list->setSorting( -1 );
  86     m_list->setAcceptDrops( true );
  87     m_list->setDragEnabled( true );
  88     m_list->setDropVisualizer( true );
  89     m_list->setDropVisualizerWidth( 3 );
  90     connect( m_list, SIGNAL( moved() ), this, SLOT( updateUI() ) );
  91     connect( m_list, SIGNAL( moved() ), this, SLOT( setChanged() ) );
  92     connect( m_list, SIGNAL( currentChanged( Q3ListViewItem* ) ), this, SLOT( updateUI() ) );
  93
  94     Q3Header* const h = Playlist::instance()->header();
  95     for( int i = h->count() - 1; i >= 0; --i )
  96     {
  97         const int s = h->mapToSection( i );
  98         if( ( s != MetaBundle::Rating || AmarokConfig::useRatings() ) &&
  99             ( s != MetaBundle::Mood   || AmarokConfig::showMoodbar() ) &&
 100             ( s != MetaBundle::Score  || AmarokConfig::useScores() ) )
 101         {
 102             ( new MyCheckListItem( s, m_list, MetaBundle::prettyColumnName( s ), Q3CheckListItem::CheckBox, this ) )
 103                 ->setOn( h->sectionSize( s ) );
 104         }
 105     }
 106
 107     m_list->setCurrentItem( m_list->firstChild() );
 108     updateUI();
 109     resetChanged();
 110 }
 111
 112 Q3ValueList<int> ColumnList::visibleColumns() const
 113 {
 114     Q3ValueList<int> v;
 115     for( MyCheckListItem *item = static_cast<MyCheckListItem*>( m_list->firstChild() ); item; item = item->itemBelow() )
 116         if( item->isOn() )
 117             v.append( item->column );
 118     return v;
 119 }
 120
 121 Q3ValueList<int> ColumnList::columnOrder() const
 122 {
 123     Q3ValueList<int> v;
 124     for( MyCheckListItem *item = static_cast<MyCheckListItem*>( m_list->firstChild() ); item; item = item->itemBelow() )
 125         v.append( item->column );
 126     return v;
 127 }
 128
 129 bool ColumnList::isChanged() const
 130 {
 131     return m_changed;
 132 }
 133
 134 void ColumnList::resetChanged()
 135 {
 136     m_changed = false;
 137 }
 138
 139 void ColumnList::moveUp()
 140 {
 141     if( Q3ListViewItem *item = m_list->currentItem() )
 142         if( item->itemAbove() )
 143         {
 144             m_list->moveItem( item, 0, item->itemAbove()->itemAbove() );
 145             m_list->setCurrentItem( item );
 146             m_list->ensureItemVisible( item );
 147             updateUI();
 148             setChanged();
 149         }
 150 }
 151
 152 void ColumnList::moveDown()
 153 {
 154     if( Q3ListViewItem *item = m_list->currentItem() )
 155     {
 156         m_list->moveItem( item, 0, item->itemBelow() );
 157         m_list->setCurrentItem( item );
 158         m_list->ensureItemVisible( item );
 159         updateUI();
 160         setChanged();
 161     }
 162 }
 163
 164 void ColumnList::updateUI()
 165 {
 166     m_up->setEnabled( m_list->currentItem() && m_list->currentItem()->itemAbove() );
 167     m_down->setEnabled( m_list->currentItem() && m_list->currentItem()->itemBelow() );
 168 }
 169
 170 void ColumnList::setChanged() //slot
 171 {
 172     if( !m_changed )
 173     {
 174         m_changed = true;
 175         emit changed();
 176     }
 177 }
 178
 179 ColumnsDialog::ColumnsDialog()
 180     : KDialog( MainWindow::self() ),
 181       m_list( new ColumnList( this ) )
 182 {
 183     setCaption( i18n( "Playlist Columns" ) );
 184     setModal( false );
 185
 186     setMainWidget( m_list );
 187     enableButtonApply( false );
 188     connect( m_list, SIGNAL( changed() ), this, SLOT( slotChanged() ) );
 189 }
 190
 191 ColumnsDialog::~ColumnsDialog()
 192 {
 193     s_instance = 0;
 194 }
 195
 196 void ColumnsDialog::slotApply()
 197 {
 198     apply();
 199     KDialog::slotButtonClicked( KDialog::Apply );
 200 }
 201
 202 void ColumnsDialog::slotOk()
 203 {
 204     apply();
 205     KDialog::slotButtonClicked( KDialog::Ok );
 206 }
 207
 208 void ColumnsDialog::hide()
 209 {
 210     KDialog::hide();
 211     delete this;
 212 }
 213
 214 void ColumnsDialog::apply()
 215 {
 216     Playlist::instance()->setColumns( m_list->columnOrder(), m_list->visibleColumns() );
 217     m_list->resetChanged();
 218     enableButtonApply( false );
 219 }
 220
 221 void ColumnsDialog::display() //static
 222 {
 223     if( !s_instance )
 224         s_instance = new ColumnsDialog;
 225     s_instance->show();
 226 }
 227
 228 void ColumnsDialog::slotChanged() //slot
 229 {
 230     enableButtonApply( true );
 231 }
 232
 233 ColumnsDialog *ColumnsDialog::s_instance = 0;
 234
 235 #include "columnlist.moc"