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* Added ColumnItemDelegate.

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This commit is contained in:
Christian Muehlhaeuser
2013-06-12 06:15:16 +02:00
parent 00eb60b41a
commit d5eec1ae8f
2 changed files with 411 additions and 0 deletions
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349
src/libtomahawk/playlist/ColumnItemDelegate.cpp Normal file
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/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
*
* Copyright 2010-2013, Christian Muehlhaeuser <muesli@tomahawk-player.org>
*
* Tomahawk is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Tomahawk is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Tomahawk. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ColumnItemDelegate.h"
#include <QApplication>
#include <QPainter>
#include <QAbstractItemView>
#include <QHeaderView>
#include <QMouseEvent>
#include "Query.h"
#include "Result.h"
#include "utils/TomahawkStyle.h"
#include "utils/TomahawkUtilsGui.h"
#include "utils/Logger.h"
#include "utils/Closure.h"
#include "utils/PixmapDelegateFader.h"
#include "PlayableItem.h"
#include "TreeProxyModel.h"
#include "ColumnView.h"
#include "ViewManager.h"
#include "Typedefs.h"
ColumnItemDelegate::ColumnItemDelegate( ColumnView* parent, TreeProxyModel* proxy )
: QStyledItemDelegate( (QObject*)parent )
, m_view( parent )
, m_model( proxy )
{
}
QSize
ColumnItemDelegate::sizeHint( const QStyleOptionViewItem& option, const QModelIndex& index ) const
{
QSize size;
if ( index.isValid() )
{
Tomahawk::ModelTypes type = (Tomahawk::ModelTypes)index.data( PlayableProxyModel::TypeRole ).toInt();
switch ( type )
{
case Tomahawk::TypeAlbum:
{
size.setHeight( option.fontMetrics.height() * 5 );
return size;
}
case Tomahawk::TypeQuery:
case Tomahawk::TypeResult:
{
size.setHeight( option.fontMetrics.height() * 1.6 );
return size;
}
default:
break;
}
}
// artist per default
size.setHeight( option.fontMetrics.height() * 3 );
return size;
}
void
ColumnItemDelegate::paint( QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index ) const
{
PlayableItem* item = m_model->sourceModel()->itemFromIndex( m_model->mapToSource( index ) );
if ( !item )
return;
QTextOption textOption( Qt::AlignVCenter | (Qt::Alignment)index.data( Qt::TextAlignmentRole ).toUInt() );
textOption.setWrapMode( QTextOption::NoWrap );
QString text;
if ( !item->artist().isNull() )
{
text = item->artist()->name();
}
else if ( !item->album().isNull() )
{
text = item->album()->name();
}
else if ( !item->result().isNull() || !item->query().isNull() )
{
float opacity = item->result().isNull() ? 0.0 : item->result()->score();
opacity = qMax( (float)0.3, opacity );
QColor textColor = TomahawkUtils::alphaBlend( option.palette.color( QPalette::Foreground ), option.palette.color( QPalette::Background ), opacity );
{
QStyleOptionViewItemV4 o = option;
initStyleOption( &o, QModelIndex() );
painter->save();
o.palette.setColor( QPalette::Text, textColor );
if ( m_view->currentIndex() == index )
o.state |= QStyle::State_Selected;
else
o.state &= ~QStyle::State_Selected;
if ( o.state & QStyle::State_Selected && o.state & QStyle::State_Active )
{
o.palette.setColor( QPalette::Text, o.palette.color( QPalette::HighlightedText ) );
}
if ( item->isPlaying() )
{
textColor = TomahawkStyle::NOW_PLAYING_ITEM_TEXT;
o.palette.setColor( QPalette::Highlight, TomahawkStyle::NOW_PLAYING_ITEM );
o.palette.setColor( QPalette::Text, TomahawkStyle::NOW_PLAYING_ITEM_TEXT );
o.state |= QStyle::State_Selected;
}
int oldX = 0;
// if ( m_view->header()->visualIndex( index.column() ) == 0 )
{
oldX = o.rect.x();
o.rect.setX( 0 );
}
qApp->style()->drawControl( QStyle::CE_ItemViewItem, &o, painter );
if ( oldX > 0 )
o.rect.setX( oldX );
/* if ( m_hoveringOver == index && !index.data().toString().isEmpty() && index.column() == 0 )
{
o.rect.setWidth( o.rect.width() - o.rect.height() );
QRect arrowRect( o.rect.x() + o.rect.width(), o.rect.y() + 1, o.rect.height() - 2, o.rect.height() - 2 );
QPixmap infoIcon = TomahawkUtils::defaultPixmap( TomahawkUtils::InfoIcon, TomahawkUtils::Original, arrowRect.size() );
painter->drawPixmap( arrowRect, infoIcon );
m_infoButtonRects[ index ] = arrowRect;
}*/
{
QRect r = o.rect.adjusted( 3, 0, 0, 0 );
// Paint Now Playing Speaker Icon
if ( item->isPlaying() )
{
const int pixMargin = 1;
const int pixHeight = r.height() - pixMargin * 2;
QRect npr = r.adjusted( pixMargin, pixMargin, pixHeight - r.width() + pixMargin, -pixMargin );
painter->drawPixmap( npr, TomahawkUtils::defaultPixmap( TomahawkUtils::NowPlayingSpeaker, TomahawkUtils::Original, npr.size() ) );
r.adjust( pixHeight + 6, 0, 0, 0 );
}
painter->setPen( o.palette.text().color() );
QString text = index.data().toString();
if ( item->query()->track()->albumpos() > 0 )
{
text = QString( "%1. %2" )
.arg( index.data( PlayableModel::AlbumPosRole ).toString() )
.arg( index.data().toString() );
}
text = painter->fontMetrics().elidedText( text, Qt::ElideRight, r.width() - 3 );
painter->drawText( r.adjusted( 0, 1, 0, 0 ), text, textOption );
}
painter->restore();
}
return;
}
else
return;
if ( text.trimmed().isEmpty() )
text = tr( "Unknown" );
QStyleOptionViewItemV4 opt = option;
initStyleOption( &opt, QModelIndex() );
const QModelIndex curIndex = m_view->currentIndex();
if ( curIndex == index || curIndex.parent() == index || curIndex.parent().parent() == index )
opt.state |= QStyle::State_Selected;
else
opt.state &= ~QStyle::State_Selected;
qApp->style()->drawControl( QStyle::CE_ItemViewItem, &opt, painter );
if ( opt.state & QStyle::State_Selected )
{
opt.palette.setColor( QPalette::Text, opt.palette.color( QPalette::HighlightedText ) );
}
QRect arrowRect( m_view->viewport()->width() - option.rect.height(), option.rect.y() + 1, option.rect.height() - 2, option.rect.height() - 2 );
if ( m_hoveringOver.row() == index.row() && m_hoveringOver.parent() == index.parent() )
{
QPixmap infoIcon = TomahawkUtils::defaultPixmap( TomahawkUtils::InfoIcon, TomahawkUtils::Original, arrowRect.size() );
painter->drawPixmap( arrowRect, infoIcon );
m_infoButtonRects[ index ] = arrowRect;
}
if ( index.column() > 0 )
return;
painter->save();
painter->setRenderHint( QPainter::Antialiasing );
painter->setPen( opt.palette.color( QPalette::Text ) );
QRect r = option.rect.adjusted( 4, 4, -option.rect.width() + option.rect.height() - 4, -4 );
// painter->drawPixmap( r, QPixmap( RESPATH "images/cover-shadow.png" ) );
if ( !m_pixmaps.contains( index ) )
{
if ( !item->album().isNull() )
{
m_pixmaps.insert( index, QSharedPointer< Tomahawk::PixmapDelegateFader >( new Tomahawk::PixmapDelegateFader( item->album(), r.size(), TomahawkUtils::Original, false ) ) );
_detail::Closure* closure = NewClosure( m_pixmaps[ index ], SIGNAL( repaintRequest() ), const_cast<ColumnItemDelegate*>(this), SLOT( doUpdateIndex( const QPersistentModelIndex& ) ), QPersistentModelIndex( index ) );
closure->setAutoDelete( false );
}
else if ( !item->artist().isNull() )
{
m_pixmaps.insert( index, QSharedPointer< Tomahawk::PixmapDelegateFader >( new Tomahawk::PixmapDelegateFader( item->artist(), r.size(), TomahawkUtils::Original, false ) ) );
_detail::Closure* closure = NewClosure( m_pixmaps[ index ], SIGNAL( repaintRequest() ), const_cast<ColumnItemDelegate*>(this), SLOT( doUpdateIndex( const QPersistentModelIndex& ) ), QPersistentModelIndex( index ) );
closure->setAutoDelete( false );
}
}
const QPixmap cover = m_pixmaps[ index ]->currentPixmap();
painter->drawPixmap( r, cover );
r = option.rect.adjusted( option.rect.height(), 6, -4, -option.rect.height() + 22 );
text = painter->fontMetrics().elidedText( text, Qt::ElideRight, r.width() );
painter->drawText( r, text, textOption );
painter->restore();
}
void
ColumnItemDelegate::doUpdateIndex( const QPersistentModelIndex& index )
{
PlayableItem* item = m_model->sourceModel()->itemFromIndex( m_model->mapToSource( index ) );
if ( !item )
return;
item->forceUpdate();
}
bool
ColumnItemDelegate::editorEvent( QEvent* event, QAbstractItemModel* model, const QStyleOptionViewItem& option, const QModelIndex& index )
{
Q_UNUSED( model );
Q_UNUSED( option );
if ( event->type() != QEvent::MouseButtonRelease &&
event->type() != QEvent::MouseMove &&
event->type() != QEvent::MouseButtonPress &&
event->type() != QEvent::Leave )
return false;
bool hoveringInfo = false;
if ( m_infoButtonRects.contains( index ) )
{
const QRect infoRect = m_infoButtonRects[ index ];
const QMouseEvent* ev = static_cast< QMouseEvent* >( event );
hoveringInfo = infoRect.contains( ev->pos() );
}
if ( event->type() == QEvent::MouseMove )
{
if ( hoveringInfo )
m_view->setCursor( Qt::PointingHandCursor );
else
m_view->setCursor( Qt::ArrowCursor );
if ( m_hoveringOver != index )
{
PlayableItem* item = m_model->sourceModel()->itemFromIndex( m_model->mapToSource( index ) );
item->requestRepaint();
m_hoveringOver = index;
doUpdateIndex( m_hoveringOver );
}
event->accept();
return true;
}
// reset mouse cursor. we switch to a pointing hand cursor when hovering an info button
m_view->setCursor( Qt::ArrowCursor );
if ( hoveringInfo )
{
if ( event->type() == QEvent::MouseButtonRelease )
{
PlayableItem* item = m_model->sourceModel()->itemFromIndex( m_model->mapToSource( index ) );
if ( !item )
return false;
if ( item->query() )
{
ViewManager::instance()->show( item->query()->track()->toQuery() );
}
else if ( item->artist() )
{
ViewManager::instance()->show( item->artist() );
}
else if ( item->album() )
{
ViewManager::instance()->show( item->album() );
}
event->accept();
return true;
}
else if ( event->type() == QEvent::MouseButtonPress )
{
// Stop the whole item from having a down click action as we just want the info button to be clicked
event->accept();
return true;
}
}
return false;
}
void
ColumnItemDelegate::resetHoverIndex()
{
m_hoveringOver = QModelIndex();
m_infoButtonRects.clear();
}

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src/libtomahawk/playlist/ColumnItemDelegate.h Normal file
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/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
*
* Copyright 2010-2013, Christian Muehlhaeuser <muesli@tomahawk-player.org>
*
* Tomahawk is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Tomahawk is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Tomahawk. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef COLUMNITEMDELEGATE_H
#define COLUMNITEMDELEGATE_H
#include <QStyledItemDelegate>
#include "DllMacro.h"
#include "Typedefs.h"
namespace Tomahawk {
class PixmapDelegateFader;
}
class ColumnView;
class TreeProxyModel;
class DLLEXPORT ColumnItemDelegate : public QStyledItemDelegate
{
Q_OBJECT
public:
ColumnItemDelegate( ColumnView* parent, TreeProxyModel* proxy );
virtual QSize sizeHint( const QStyleOptionViewItem& option, const QModelIndex& index ) const;
public slots:
void resetHoverIndex();
protected:
void paint( QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index ) const;
bool editorEvent( QEvent* event, QAbstractItemModel* model, const QStyleOptionViewItem& option, const QModelIndex& index );
private slots:
void doUpdateIndex( const QPersistentModelIndex& index );
private:
ColumnView* m_view;
TreeProxyModel* m_model;
mutable QHash< QPersistentModelIndex, QSharedPointer< Tomahawk::PixmapDelegateFader > > m_pixmaps;
mutable QHash< QPersistentModelIndex, QRect > m_infoButtonRects;
QPersistentModelIndex m_hoveringOver;
};
#endif // COLUMNITEMDELEGATE_H