Initial import of Matthias's draft patch for adding video and audio previewing (similar to the file dialog) to Dolphin's metadata panel. Since Phonon is currently in-process only with the memory/ stability issues that come with this, this might have to be disabled by default - we'll see how it goes. Thanks, Matthias!

CCMAIL:kretz@kde.org
CCMAIL:peter.penz@gmx.at

svn path=/trunk/KDE/kdebase/apps/; revision=917389

src/CMakeLists.txt

@@ -106,6 +106,7 @@ set(dolphin_SRCS
     panels/information/informationpanel.cpp
     panels/information/metadatawidget.cpp
     panels/information/metatextlabel.cpp
+    panels/information/phononwidget.cpp
     panels/folders/ktreeview.cpp
     panels/places/placespanel.cpp
     panels/panel.cpp
@@ -165,7 +166,7 @@ kde4_add_app_icon(dolphin_SRCS "${KDE4_ICON_INSTALL_DIR}/oxygen/*/apps/system-fi
 
 kde4_add_executable(dolphin ${dolphin_SRCS})
 
-target_link_libraries(dolphin ${KDE4_KIO_LIBS}  ${KDE4_KDEPRINT_LIBS} ${KDE4_KFILE_LIBS} konq dolphinprivate)
+target_link_libraries(dolphin ${KDE4_KIO_LIBS}  ${KDE4_KDEPRINT_LIBS} ${KDE4_KFILE_LIBS} konq dolphinprivate ${KDE4_PHONON_LIBS})
 
 if (Nepomuk_FOUND)
   target_link_libraries(dolphin ${NEPOMUK_LIBRARIES} ${SOPRANO_LIBRARIES})

src/panels/information/informationpanel.cpp

@@ -35,6 +35,7 @@
 #include <kiconloader.h>
 
 #include <QEvent>
+#include <QtGui/QToolButton>
 #include <QInputDialog>
 #include <QLabel>
 #include <QPainter>
@@ -47,8 +48,12 @@
 
 #include "settings/dolphinsettings.h"
 #include "metadatawidget.h"
+#include "phononwidget.h"
 #include "metatextlabel.h"
 #include "pixmapviewer.h"
+#include <Phonon/BackendCapabilities>
+#include <Phonon/MediaObject>
+#include <Phonon/SeekSlider>
 
 InformationPanel::InformationPanel(QWidget* parent) :
     Panel(parent),
@@ -60,6 +65,8 @@ InformationPanel::InformationPanel(QWidget* parent) :
     m_urlCandidate(),
     m_fileItem(),
     m_selection(),
+    m_infoLabel(0),
+    m_phononWidget(0),
     m_nameLabel(0),
     m_preview(0),
     m_metaDataWidget(0),
@@ -354,6 +361,9 @@ void InformationPanel::cancelRequest()
 
 void InformationPanel::showMetaInfo()
 {
+    delete m_phononWidget;
+    m_phononWidget = 0;
+
     m_metaTextLabel->clear();
 
     if (showMultipleSelectionInfo()) {
@@ -413,6 +423,16 @@ void InformationPanel::showMetaInfo()
         if (m_metaDataWidget != 0) {
             m_metaDataWidget->setFile(item.targetUrl());
         }
+
+        if (Phonon::BackendCapabilities::isMimeTypeAvailable(item.mimetype())) {
+            PhononWidget *p = new PhononWidget(this);
+            p->setUrl(item.url());
+            m_phononWidget = p;
+
+            QVBoxLayout *l = qobject_cast<QVBoxLayout *>(layout());
+            Q_ASSERT(l);
+            l->insertWidget(3, m_phononWidget);
+        }
     }
 }
 

src/panels/information/informationpanel.h

@@ -185,6 +185,9 @@ private:
     KFileItem m_fileItem; // file item for m_shownUrl if available (otherwise null)
     KFileItemList m_selection;
 
+    QLabel* m_infoLabel;
+    QWidget* m_phononWidget;
+
     QLabel* m_nameLabel;
     PixmapViewer* m_preview;
     MetaDataWidget* m_metaDataWidget;

src/panels/information/phononwidget.cpp

@@ -0,0 +1,85 @@
+/*  This file is part of the KDE project
+    Copyright (C) 2007 Matthias Kretz <kretz@kde.org>
+
+    This program 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 2 of
+    the License, or (at your option) any later version.
+
+    This program 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 this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+    02110-1301, USA.
+
+*/
+
+#include "phononwidget.h"
+
+#include <Phonon/Global>
+#include <Phonon/MediaObject>
+#include <Phonon/SeekSlider>
+#include <QtGui/QHBoxLayout>
+#include <QtGui/QToolButton>
+#include <kicon.h>
+#include <kurl.h>
+#include <klocale.h>
+
+PhononWidget::PhononWidget(QWidget *parent)
+    : QWidget(parent),
+    m_media(0)
+{
+    QHBoxLayout *innerLayout = new QHBoxLayout(this);
+    innerLayout->setMargin(0);
+    innerLayout->setSpacing(0);
+    m_playButton = new QToolButton(this);
+    m_stopButton = new QToolButton(this);
+    m_seekSlider = new Phonon::SeekSlider(this);
+    innerLayout->addWidget(m_playButton);
+    innerLayout->addWidget(m_stopButton);
+    innerLayout->addWidget(m_seekSlider);
+
+    m_playButton->setToolTip(i18n("play"));
+    m_playButton->setIconSize(QSize(16, 16));
+    m_playButton->setIcon(KIcon("media-playback-start"));
+    m_stopButton->setToolTip(i18n("stop"));
+    m_stopButton->setIconSize(QSize(16, 16));
+    m_stopButton->setIcon(KIcon("media-playback-stop"));
+    m_stopButton->hide();
+    m_seekSlider->setIconVisible(false);
+}
+
+void PhononWidget::setUrl(const KUrl &url)
+{
+    if (m_media) {
+        m_media->setCurrentSource(url);
+    } else {
+        m_media = Phonon::createPlayer(Phonon::MusicCategory, url);
+        m_media->setParent(this);
+        connect(m_playButton, SIGNAL(clicked()), m_media, SLOT(play()));
+        connect(m_stopButton, SIGNAL(clicked()), m_media, SLOT(stop()));
+        connect(m_media, SIGNAL(stateChanged(Phonon::State, Phonon::State)), SLOT(stateChanged(Phonon::State)));
+        m_seekSlider->setMediaObject(m_media);
+    }
+}
+
+void PhononWidget::stateChanged(Phonon::State newstate)
+{
+    setUpdatesEnabled(false);
+    switch (newstate) {
+    case Phonon::PlayingState:
+    case Phonon::BufferingState:
+        m_stopButton->show();
+        m_playButton->hide();
+        break;
+    default:
+        m_stopButton->hide();
+        m_playButton->show();
+        break;
+    }
+    setUpdatesEnabled(true);
+}

src/panels/information/phononwidget.h

@@ -0,0 +1,54 @@
+/*  This file is part of the KDE project
+    Copyright (C) 2007 Matthias Kretz <kretz@kde.org>
+
+    This program 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 2 of
+    the License, or (at your option) any later version.
+
+    This program 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 this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+    02110-1301, USA.
+
+*/
+
+#ifndef PHONONWIDGET_H
+#define PHONONWIDGET_H
+
+#include <QtGui/QWidget>
+
+#include <Phonon/Global>
+
+namespace Phonon
+{
+    class MediaObject;
+    class SeekSlider;
+} // namespace Phonon
+
+class QToolButton;
+class KUrl;
+
+class PhononWidget : public QWidget
+{
+    Q_OBJECT
+    public:
+        PhononWidget(QWidget *parent = 0);
+        void setUrl(const KUrl &url);
+
+    private slots:
+        void stateChanged(Phonon::State);
+
+    private:
+        QToolButton *m_playButton;
+        QToolButton *m_stopButton;
+        Phonon::MediaObject *m_media;
+        Phonon::SeekSlider *m_seekSlider;
+};
+
+#endif // PHONONWIDGET_H