src/sidebar.h

   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 #ifndef AMAROK_SIDEBAR_H
  21 #define AMAROK_SIDEBAR_H
  22
  23 #include "sidebarwidget.h"
  24
  25 #include <KHBox>
  26
  27 #include <QIcon>
  28 #include <QFrame>
  29 #include <QStackedWidget>
  30
  31
  32 class SideBar: public KHBox
  33 {
  34     typedef KHBox super;
  35     Q_OBJECT
  36
  37     signals:
  38         void widgetActivated( int index );
  39         void widgetActivated( QWidget* );
  40
  41     public:
  42         explicit SideBar( QWidget *parent, QWidget *contentsWidget = 0 )
  43             : super( parent )
  44             , m_bar( new SideBarWidget( this ) )
  45             , m_frame( new KHBox( this ) )
  46             , m_widgets( new QStackedWidget( m_frame ) )
  47             , m_current( -1 )
  48         {
  49             connect( m_bar, SIGNAL( opened( int ) ), SLOT( openWidget( int ) ) );
  50             connect( m_bar, SIGNAL( closed() ), SLOT( closeWidgets() ) );
  51             m_frame->hide();
  52             m_widgets->setParent( m_frame );
  53             setContentsWidget( contentsWidget );
  54             layout()->setContentsMargins( 0, 0, 0, 0 );
  55         }
  56
  57         void setContentsWidget( QWidget *w )
  58         {
  59             m_contentsWidget = w;
  60             if( w )
  61                 w->setParent( this );
  62         }
  63         SideBarWidget *sideBarWidget() const { return m_bar; }
  64
  65         QWidget *contentsWidget() const { return m_contentsWidget; }
  66
  67         int addWidget( const QIcon &icon, const QString &name, QWidget *widget )
  68         {
  69             m_widgets->addWidget( widget );
  70             m_bar->addSideBar( icon, name );
  71             return m_widgets->count() - 1;
  72         }
  73
  74         void removeWidget( QWidget *widget )
  75         {
  76             m_widgets->removeWidget( widget );
  77         }
  78
  79
  80         QWidget *at( int index ) const { return m_widgets->widget( index ); }
  81
  82         int currentIndex() const { return m_current; }
  83
  84         QWidget *currentWidget() const
  85         {
  86             if( m_current >= 0 )
  87                 return at( m_current );
  88             else
  89                 return 0;
  90         }
  91
  92     public slots:
  93         void showWidget( int index ) { m_bar->open( index ); }
  94
  95     private slots:
  96         void openWidget( int index )
  97         {
  98             m_contentsWidget->setParent( m_frame );
  99             m_frame->show();
 100             m_widgets->setCurrentIndex( index );
 101             m_current = index;
 102             emit widgetActivated( currentIndex() );
 103             emit widgetActivated( currentWidget() );
 104         }
 105
 106         void closeWidgets()
 107         {
 108             m_contentsWidget->setParent( this );
 109             m_frame->hide();
 110             resize( m_bar->sizeHint() );
 111             m_current = -1;
 112             emit widgetActivated( currentIndex() );
 113             emit widgetActivated( currentWidget() );
 114         }
 115
 116     private:
 117         SideBarWidget *m_bar;
 118         KHBox *m_frame;
 119         QStackedWidget *m_widgets;
 120         QWidget *m_contentsWidget;
 121         int m_current;
 122 };
 123
 124 #endif