* Added StatsGauge.

src/libtomahawk/CMakeLists.txt

@@ -128,6 +128,7 @@ set( libGuiSources
     widgets/CheckDirTree.cpp
     widgets/QueryLabel.cpp
     widgets/ImageButton.cpp
+    widgets/StatsGauge.cpp
     widgets/AnimatedSplitter.cpp
     widgets/ElidedLabel.cpp
     widgets/NewPlaylistWidget.cpp
@@ -246,6 +247,7 @@ list(APPEND libSources
     database/DatabaseCommand_SourceOffline.cpp
     database/DatabaseCommand_CollectionStats.cpp
     database/DatabaseCommand_TrackStats.cpp
+    database/DatabaseCommand_ArtistStats.cpp
     database/DatabaseCommand_LoadPlaylistEntries.cpp
     database/DatabaseCommand_LoadInboxEntries.cpp
     database/DatabaseCommand_ModifyPlaylist.cpp

src/libtomahawk/widgets/StatsGauge.cpp

@@ -0,0 +1,129 @@
+/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
+ *
+ *   Copyright 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 "StatsGauge.h"
+
+#include "utils/TomahawkStyle.h"
+#include "utils/TomahawkUtilsGui.h"
+#include "utils/Logger.h"
+
+#include <QEasingCurve>
+#include <QPainter>
+#include <QPaintEvent>
+#include <QPropertyAnimation>
+#include <QLayout>
+#include <QString>
+
+
+StatsGauge::StatsGauge( QWidget* parent )
+    : QProgressBar( parent )
+{
+    QProgressBar::setValue( 0 );
+    QProgressBar::setMaximum( 0 );
+
+    m_sizeHint = QSize( 200, 240 );
+    resize( m_sizeHint );
+    setFixedSize( m_sizeHint );
+}
+
+
+void
+StatsGauge::paintEvent( QPaintEvent* event )
+{
+    QPainter p( this );
+    p.setRenderHint( QPainter::Antialiasing );
+    p.setClipRect( event->rect() );
+
+    QSize gaugeSize = m_sizeHint - QSize( 0, 40 );
+
+    QPen pen( TomahawkStyle::NOW_PLAYING_ITEM.lighter() );
+    pen.setWidth( 16 );
+    p.setPen( pen );
+
+    int fullCircle = 16 * 360;
+    p.drawArc( QRect( 12, 12, gaugeSize.width() - 24, gaugeSize.height() - 24 ), 4*360, (int)( -1.0 * (float)fullCircle * ( 1.0 - (float)value() / (float)maximum() ) ) );
+
+    pen = QPen( TomahawkStyle::NOW_PLAYING_ITEM.darker() );
+    pen.setWidth( 6 );
+    p.setPen( pen );
+
+    QBrush brush( QColor( "#252020" ) );
+    p.setBrush( brush );
+    p.drawEllipse( QRect( 28, 28, gaugeSize.width() - 56, gaugeSize.height() - 56 ) );
+
+    pen = QPen( Qt::white );
+    p.setPen( pen );
+    QFont font = p.font();
+    font.setWeight( QFont::Black );
+    font.setPixelSize( 60 );
+    p.setFont( font );
+
+    QRect textRect( 0, gaugeSize.height() / 2 - 14, gaugeSize.width(), 62 );
+    p.drawText( textRect, Qt::AlignCenter, value() > 0 ? QString::number( value() ) : "-" );
+
+    pen = QPen( QColor( "#8b8b8b" ) );
+    p.setPen( pen );
+    font = p.font();
+    font.setWeight( QFont::Black );
+    font.setPixelSize( 16 );
+    p.setFont( font );
+
+    textRect = QRect( 0, gaugeSize.height() / 2 - 32, gaugeSize.width(), 20 );
+    p.drawText( textRect, Qt::AlignCenter, maximum() > 0 ? QString( "out of %1" ).arg( maximum() ) : "-" );
+
+    if ( !m_text.isEmpty() )
+    {
+        pen = QPen( Qt::white );
+        p.setPen( pen );
+        font = p.font();
+        font.setWeight( QFont::Black );
+        font.setPixelSize( 18 );
+        p.setFont( font );
+
+        QColor figColor( "#3e3e3e" );
+        p.setBrush( figColor );
+
+        QFontMetrics fm( font );
+        int textWidth = fm.width( m_text );
+        textRect = QRect( m_sizeHint.width() / 2 - ( textWidth / 2 + 12 ), m_sizeHint.height() - 32, textWidth + 24, 28 );
+
+        TomahawkUtils::drawBackgroundAndNumbers( &p, m_text, textRect );
+    }
+}
+
+
+void
+StatsGauge::setValue( int v )
+{
+    QPropertyAnimation* a = new QPropertyAnimation( (QProgressBar*)this, "value" );
+    a->setEasingCurve( QEasingCurve( QEasingCurve::InOutQuad ) );
+    a->setStartValue( value() );
+    a->setEndValue( v );
+    a->setDuration( 2000 );
+
+    connect( a, SIGNAL( finished() ), a, SLOT( deleteLater() ) );
+    a->start();
+}
+
+
+void
+StatsGauge::setText( const QString& text )
+{
+    m_text = text;
+    repaint();
+}

src/libtomahawk/widgets/StatsGauge.h

@@ -0,0 +1,49 @@
+/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
+ *
+ *   Copyright 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 STATS_GAUGE_H
+#define STATS_GAUGE_H
+
+#include "DllMacro.h"
+
+#include <QProgressBar>
+
+class DLLEXPORT StatsGauge : public QProgressBar
+{
+Q_OBJECT
+
+public:
+    /** this pixmap becomes the rest state pixmap and defines the size of the eventual widget */
+    explicit StatsGauge( QWidget* parent = 0 );
+
+    virtual QSize sizeHint() const { return m_sizeHint; }
+    QString text() const { return m_text; }
+
+public slots:
+    void setValue( int value );
+    void setText( const QString& text );
+
+protected:
+    virtual void paintEvent( QPaintEvent* event );
+
+private:
+    QSize m_sizeHint;
+    QString m_text;
+};
+
+#endif //STATS_GAUGE_H