[vlc-devel] [PATCH 1/3] Qt: Add libVLC abtraction layer classes

Francois Cartegnie fcvlcdev at free.fr
Wed Mar 3 21:51:10 CET 2010


---
 modules/gui/qt4/Modules.am                      |    6 ++
 modules/gui/qt4/adapters/audiothreadadapter.cpp |   85 +++++++++++++++++++++++
 modules/gui/qt4/adapters/audiothreadadapter.hpp |   63 +++++++++++++++++
 modules/gui/qt4/adapters/prefsadapter.cpp       |   44 ++++++++++++
 modules/gui/qt4/adapters/prefsadapter.hpp       |   48 +++++++++++++
 modules/gui/qt4/qt4.cpp                         |    5 ++
 6 files changed, 251 insertions(+), 0 deletions(-)
 create mode 100644 modules/gui/qt4/adapters/audiothreadadapter.cpp
 create mode 100644 modules/gui/qt4/adapters/audiothreadadapter.hpp
 create mode 100644 modules/gui/qt4/adapters/prefsadapter.cpp
 create mode 100644 modules/gui/qt4/adapters/prefsadapter.hpp

diff --git a/modules/gui/qt4/Modules.am b/modules/gui/qt4/Modules.am
index d2c032e..639871a 100644
--- a/modules/gui/qt4/Modules.am
+++ b/modules/gui/qt4/Modules.am
@@ -23,6 +23,8 @@ nodist_SOURCES_qt4 = \
 		extensions_manager.moc.cpp \
 		recents.moc.cpp \
 		variables.moc.cpp \
+		adapters/audiothreadadapter.moc.cpp \
+		adapters/prefsadapter.moc.cpp \
 		dialogs/playlist.moc.cpp \
 		dialogs/bookmarks.moc.cpp \
 		dialogs/mediainfo.moc.cpp \
@@ -221,6 +223,8 @@ SOURCES_qt4 = 	qt4.cpp \
 		extensions_manager.cpp \
 		recents.cpp \
 		variables.cpp \
+		adapters/audiothreadadapter.cpp \
+		adapters/prefsadapter.cpp \
 		dialogs/playlist.cpp \
 		dialogs/bookmarks.cpp \
 		dialogs/preferences.cpp \
@@ -277,6 +281,8 @@ noinst_HEADERS = \
 	extensions_manager.hpp \
 	recents.hpp \
 	variables.hpp \
+	adapters/audiothreadadapter.hpp \
+	adapters/prefsadapter.hpp \
 	dialogs/playlist.hpp \
 	dialogs/bookmarks.hpp \
 	dialogs/mediainfo.hpp \
diff --git a/modules/gui/qt4/adapters/audiothreadadapter.cpp b/modules/gui/qt4/adapters/audiothreadadapter.cpp
new file mode 100644
index 0000000..fb86434
--- /dev/null
+++ b/modules/gui/qt4/adapters/audiothreadadapter.cpp
@@ -0,0 +1,85 @@
+/*****************************************************************************
+ * audiothreadadapter.cpp : LibVLC audio abstraction class
+ ****************************************************************************
+ * Copyright (C) 2006-2010 the VideoLAN team
+ *
+ * Authors: Francois Cartegnie <fcvlcdev at free.fr>
+ *
+ * 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.
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "audiothreadadapter.hpp"
+ /* required for MIM/InputManager. Maybe we could plug directly lib's events ?*/
+#include "input_manager.hpp"
+
+#include <QHBoxLayout>
+#include <QVBoxLayout>
+#include <QDebug>
+
+/**********************************************************************
+ * AudioThreadAdapter implementation
+ **********************************************************************/
+
+AudioThreadAdapter::AudioThreadAdapter( intf_thread_t * _p_intf )
+    : QObject(), p_intf( _p_intf )
+{
+    Q_CHECK_PTR( p_intf );
+    CONNECT( THEMIM, volumeChanged( ), this, onLibUpdateVolumeHandler( ) );
+    CONNECT( THEMIM, soundMuteChanged( ), this, onLibUpdateMuteStatusHandler( ) );
+}
+
+void AudioThreadAdapter::setLibVolume( int i_volume )
+{
+    playlist_t *p_playlist = pl_Get( p_intf );
+    int i_res = ( (float) i_volume / 100 ) * LIB_VOLUME_CPC;
+    aout_VolumeSet( p_playlist, i_res );
+}
+
+int AudioThreadAdapter::getLibVolume( )
+{
+    audio_volume_t i_volume;
+    playlist_t *p_playlist = pl_Get( p_intf );
+    aout_VolumeGet( p_playlist, &i_volume );
+    i_volume =  (float) i_volume / LIB_VOLUME_CPC * 100.0;
+    return i_volume;
+}
+
+void AudioThreadAdapter::setLibMuteState( bool b_mute )
+{
+    playlist_t *p_playlist = pl_Get( p_intf );
+    aout_SetMute( VLC_OBJECT(p_playlist), NULL, b_mute );
+}
+
+bool AudioThreadAdapter::getLibMuteState( )
+{
+    bool b_is_muted;
+    playlist_t *p_playlist = pl_Get( p_intf );
+    b_is_muted = aout_IsMuted( VLC_OBJECT(p_playlist) );
+    return b_is_muted;
+}
+
+void AudioThreadAdapter::onLibUpdateVolumeHandler( )
+{
+    emit libUpdatedVolume( getLibVolume() );
+}
+
+void AudioThreadAdapter::onLibUpdateMuteStatusHandler( )
+{
+    emit libUpdatedMuteStatus( getLibMuteState() );
+}
diff --git a/modules/gui/qt4/adapters/audiothreadadapter.hpp b/modules/gui/qt4/adapters/audiothreadadapter.hpp
new file mode 100644
index 0000000..46b0cdc
--- /dev/null
+++ b/modules/gui/qt4/adapters/audiothreadadapter.hpp
@@ -0,0 +1,63 @@
+/*****************************************************************************
+ * audiothreadadapter.cpp : LibVLC audio abstraction class
+ ****************************************************************************
+ * Copyright (C) 2006-2010 the VideoLAN team
+ *
+ * Authors: Francois Cartegnie <fcvlcdev at free.fr>
+ *
+ * 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 AUDIOTHREADADAPTER_HPP
+#define AUDIOTHREADADAPTER_HPP
+
+#include "qt4.hpp"
+#include "../util/singleton.hpp"
+#include <QObject>
+#include <vlc_aout.h>
+
+/**********************************************************************
+ * AudioThreadAdapter
+ **********************************************************************
+ * The Audio Thread Adapter wraps libVLC calls for audio
+ * functions. Also handles values translation.
+ **********************************************************************/
+
+class AudioThreadAdapter : public QObject,
+                public Singleton< AudioThreadAdapter >
+{
+    friend class Singleton< AudioThreadAdapter >;
+Q_OBJECT
+public:
+    void setLibVolume( int );
+    void setLibMuteState( bool );
+    int getLibVolume( );
+    bool getLibMuteState( );
+signals:
+    /* Emitted after handling & value translation */
+    void libUpdatedVolume( int );
+    void libUpdatedMuteStatus( bool );
+public slots:
+    /* targets for libVLC events */
+    void onLibUpdateVolumeHandler( );
+    void onLibUpdateMuteStatusHandler( );
+private:
+    explicit AudioThreadAdapter( intf_thread_t * _p_intf );
+    intf_thread_t * p_intf;
+    static const int LIB_VOLUME_CPC = 256; /* libVLC value for 100% volume */
+};
+
+
+#endif // AUDIOTHREADADAPTER_HPP
diff --git a/modules/gui/qt4/adapters/prefsadapter.cpp b/modules/gui/qt4/adapters/prefsadapter.cpp
new file mode 100644
index 0000000..632d124
--- /dev/null
+++ b/modules/gui/qt4/adapters/prefsadapter.cpp
@@ -0,0 +1,44 @@
+/*****************************************************************************
+ * prefsadapter.cpp : LibVLC variables abstraction class
+ ****************************************************************************
+ * Copyright (C) 2006-2010 the VideoLAN team
+ *
+ * Authors: Francois Cartegnie <fcvlcdev at free.fr>
+ *
+ * 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 "prefsadapter.hpp"
+
+PrefsAdapter::PrefsAdapter( intf_thread_t * _p_intf ) :
+        QObject(), p_intf( _p_intf )
+{
+    Q_CHECK_PTR( p_intf );
+}
+
+char * PrefsAdapter::getString( const char * s_keyname )
+{
+    return var_InheritString( p_intf, s_keyname );
+}
+
+int PrefsAdapter::getInteger( const char * s_keyname )
+{
+    return var_InheritInteger( p_intf, s_keyname );
+}
+
+bool PrefsAdapter::getBool( const char * s_keyname )
+{
+    return var_InheritBool( p_intf, s_keyname );
+}
diff --git a/modules/gui/qt4/adapters/prefsadapter.hpp b/modules/gui/qt4/adapters/prefsadapter.hpp
new file mode 100644
index 0000000..5ea4c8a
--- /dev/null
+++ b/modules/gui/qt4/adapters/prefsadapter.hpp
@@ -0,0 +1,48 @@
+/*****************************************************************************
+ * prefsadapter.hpp : LibVLC variables abstraction class
+ ****************************************************************************
+ * Copyright (C) 2006-2010 the VideoLAN team
+ *
+ * Authors: Francois Cartegnie <fcvlcdev at free.fr>
+ *
+ * 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 PREFSADAPTER_HPP
+#define PREFSADAPTER_HPP
+
+#include "../util/singleton.hpp"
+
+#include <QObject>
+#include <vlc_variables.h>
+
+
+class PrefsAdapter : public QObject, public Singleton< PrefsAdapter >
+{
+    friend class Singleton< PrefsAdapter >;
+Q_OBJECT
+public:
+    char * getString( const char * );
+    int getInteger( const char * );
+    bool getBool( const char * );
+signals:
+
+public slots:
+private:
+    explicit PrefsAdapter( intf_thread_t * _p_intf );
+    intf_thread_t * p_intf;
+};
+
+#endif // PREFSADAPTER_HPP
diff --git a/modules/gui/qt4/qt4.cpp b/modules/gui/qt4/qt4.cpp
index 4fde7ed..5ccb5ce 100644
--- a/modules/gui/qt4/qt4.cpp
+++ b/modules/gui/qt4/qt4.cpp
@@ -37,6 +37,8 @@
 #include "dialogs/help.hpp"     /* Launch Update */
 #include "recents.hpp"          /* Recents Item destruction */
 #include "util/qvlcapp.hpp"     /* QVLCApplication definition */
+#include "adapters/audiothreadadapter.hpp"
+#include "adapters/prefsadapter.hpp"
 
 #ifdef Q_WS_X11
  #include <X11/Xlib.h>
@@ -503,6 +505,9 @@ static void *Thread( void *obj )
     /* Destroy the MainInputManager */
     MainInputManager::killInstance();
 
+    /* Abstraction adapters */
+    AudioThreadAdapter::killInstance();
+    PrefsAdapter::killInstance();
 
     /* Delete the application automatically */
 #ifdef Q_WS_X11
-- 
1.6.4.4




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