From 48d66649b1b96ed59b751cef08c38399d9c33000 Mon Sep 17 00:00:00 2001
From: Christian Muehlhaeuser <muesli@gmail.com>
Date: Sat, 31 Mar 2012 07:18:01 +0200
Subject: [PATCH] * Forgot those files.

---
 src/libtomahawk/widgets/FadingPixmap.cpp | 114 +++++++++++++++++++++++
 src/libtomahawk/widgets/FadingPixmap.h   |  64 +++++++++++++
 2 files changed, 178 insertions(+)
 create mode 100644 src/libtomahawk/widgets/FadingPixmap.cpp
 create mode 100644 src/libtomahawk/widgets/FadingPixmap.h

diff --git a/src/libtomahawk/widgets/FadingPixmap.cpp b/src/libtomahawk/widgets/FadingPixmap.cpp
new file mode 100644
index 000000000..29b7304c4
--- /dev/null
+++ b/src/libtomahawk/widgets/FadingPixmap.cpp
@@ -0,0 +1,114 @@
+/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
+ *
+ *   Copyright 2011 - 2012, 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 "FadingPixmap.h"
+
+#include <QPainter>
+
+#define ANIMATION_TIME 1000
+
+FadingPixmap::FadingPixmap( QWidget* parent )
+    : QLabel( parent )
+    , m_fadePct( 100 )
+{
+//    setCursor( Qt::PointingHandCursor );
+
+    m_timeLine = new QTimeLine( ANIMATION_TIME, this );
+    m_timeLine->setUpdateInterval( 20 );
+    m_timeLine->setEasingCurve( QEasingCurve::Linear );
+
+    connect( m_timeLine, SIGNAL( frameChanged( int ) ), SLOT( onAnimationStep( int ) ) );
+    connect( m_timeLine, SIGNAL( finished() ), SLOT( onAnimationFinished() ) );
+}
+
+
+FadingPixmap::~FadingPixmap()
+{
+}
+
+
+void
+FadingPixmap::onAnimationStep( int frame )
+{
+    m_fadePct = (float)frame / 10.0;
+    repaint();
+}
+
+
+void
+FadingPixmap::onAnimationFinished()
+{
+    m_oldPixmap = QPixmap();
+    repaint();
+    
+    if ( m_pixmapQueue.count() )
+    {
+        setPixmap( m_pixmapQueue.takeFirst() );
+    }
+}
+
+
+void
+FadingPixmap::setPixmap( const QPixmap& pixmap, bool clearQueue )
+{
+    if ( m_timeLine->state() == QTimeLine::Running )
+    {
+        if ( clearQueue )
+            m_pixmapQueue.clear();
+
+        m_pixmapQueue << pixmap;
+        return;
+    }
+
+    m_oldPixmap = m_pixmap;
+    m_pixmap = pixmap;
+
+    m_timeLine->setFrameRange( 0, 1000 );
+    m_timeLine->setDirection( QTimeLine::Forward );
+    m_timeLine->start();
+}
+
+
+void
+FadingPixmap::mouseReleaseEvent( QMouseEvent* event )
+{
+    QFrame::mouseReleaseEvent( event );
+
+    emit clicked();
+}
+
+
+void
+FadingPixmap::paintEvent( QPaintEvent* event )
+{
+    Q_UNUSED( event );
+    
+    QPainter p( this );
+    QRect r = contentsRect();
+
+    p.save();
+    p.setRenderHint( QPainter::Antialiasing );
+
+    p.setOpacity( float( 100.0 - m_fadePct ) / 100.0 );
+    p.drawPixmap( r, m_oldPixmap );
+
+    p.setOpacity( float( m_fadePct ) / 100.0 );
+    p.drawPixmap( r, m_pixmap );
+
+    p.restore();
+}
diff --git a/src/libtomahawk/widgets/FadingPixmap.h b/src/libtomahawk/widgets/FadingPixmap.h
new file mode 100644
index 000000000..e6bd7720f
--- /dev/null
+++ b/src/libtomahawk/widgets/FadingPixmap.h
@@ -0,0 +1,64 @@
+/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
+ *
+ *   Copyright 2011 - 2012, 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 FADINGPIXMAP_H
+#define FADINGPIXMAP_H
+
+#include <QLabel>
+#include <QPaintEvent>
+#include <QTimeLine>
+
+#include "dllmacro.h"
+
+/**
+ * \class FadingPixmap
+ * \brief Fades to the new image when calling setPixmap.
+ */
+class DLLEXPORT FadingPixmap : public QLabel
+{
+Q_OBJECT
+
+public:
+    FadingPixmap( QWidget* parent = 0 );
+    virtual ~FadingPixmap();
+
+public slots:
+    virtual void setPixmap( const QPixmap& pixmap, bool clearQueue = true );
+
+signals:
+    void clicked();
+
+protected:
+    virtual void paintEvent( QPaintEvent* );
+    void mouseReleaseEvent( QMouseEvent* event );
+
+private slots:
+    void onAnimationStep( int frame );
+    void onAnimationFinished();
+
+private:
+    QPixmap m_pixmap;
+    QPixmap m_oldPixmap;
+    
+    QList<QPixmap> m_pixmapQueue;
+    
+    QTimeLine* m_timeLine;
+    int m_fadePct;
+};
+
+#endif