Back light control added.

CMakeLists.txt

@@ -25,6 +25,8 @@ set(LXQT_VERSION ${LXQT_MAJOR_VERSION}.${LXQT_MINOR_VERSION}.${LXQT_PATCH_VERSIO
 include(CMakePackageConfigHelpers)
 include(GNUInstallDirs) # Standard directories for installation
 
+add_subdirectory(lxqtbacklight/linux_backend/driver)
+
 #-----------------------------------------------------------------------------
 # Release is the default build type
 #-----------------------------------------------------------------------------
@@ -55,6 +57,9 @@ set(PUB_HDRS
     lxqtgridlayout.h
     lxqtrotatedwidget.h
     lxqtglobals.h
+    lxqtbacklight.h
+    #lxqtbacklight/virtual_backend.h
+    #lxqtbacklight/linux_backend/linuxbackend.h
 )
 
 set(PUBLIC_CLASSES
@@ -78,6 +83,7 @@ set(PUBLIC_CLASSES
     GridLayout
     RotatedWidget
     Globals
+    Backlight
 )
 
 set(SRCS
@@ -101,6 +107,9 @@ set(SRCS
     lxqtnotification.cpp
     lxqtgridlayout.cpp
     lxqtrotatedwidget.cpp
+    lxqtbacklight.cpp
+    lxqtbacklight/virtual_backend.cpp
+    lxqtbacklight/linux_backend/linuxbackend.cpp
 )
 
 set(MOCS
@@ -109,6 +118,7 @@ set(MOCS
     lxqtsettings.h
     lxqtscreensaver.h
     lxqtapplication.h
+    lxqtbacklight.h
 
     configdialog/lxqtconfigdialog.h
     configdialog/lxqtconfigdialog_p.h
@@ -120,12 +130,22 @@ set(MOCS
     lxqtpower/lxqtpowerproviders.h
     lxqtgridlayout.h
     lxqtrotatedwidget.h
+    lxqtbacklight/virtual_backend.h
+    lxqtbacklight/linux_backend/linuxbackend.h
 )
 
 set(FORMS
     configdialog/lxqtconfigdialog.ui
 )
 
+set(POLKIT_FILES
+    ${CMAKE_BINARY_DIR}/org.lxqt.backlight.pkexec.policy
+)
+
+# Build Polkit file
+configure_file ( polkit/org.lxqt.backlight.pkexec.policy.in org.lxqt.backlight.pkexec.policy )
+install(FILES ${POLKIT_FILES} DESTINATION /usr/share/polkit-1/actions/)
+
 file(GLOB LXQT_CONFIG_FILES resources/*.conf)
 
 option(UPDATE_TRANSLATIONS "Update source translation translations/*.ts files" OFF)

lxqtbacklight.cpp

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2016  P.L. Lucas
+ * 
+ * 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 "lxqtbacklight.h"
+#include "lxqtbacklight/virtual_backend.h"
+#include "lxqtbacklight/linux_backend/linuxbackend.h"
+
+namespace LXQt {
+
+Backlight::Backlight(QObject *parent):QObject(parent)
+{
+    _backend = (VirtualBackEnd *) new LinuxBackend(this);
+    connect(_backend, SIGNAL(backlightChanged(int)), this, SLOT(backlightChangedSlot(int)));
+}
+
+Backlight::~Backlight()
+{
+    delete _backend;
+}
+
+int Backlight::getBacklight()
+{
+    return _backend->getBacklight();
+}
+
+int Backlight::getMaxBacklight()
+{
+    return _backend->getMaxBacklight();
+}
+
+bool Backlight::isBacklightAvailable()
+{
+    return _backend->isBacklightAvailable();
+}
+
+void Backlight::setBacklight(int value)
+{
+    _backend->setBacklight(value);
+}
+
+void Backlight::backlightChangedSlot(int value)
+{
+    emit backlightChanged(value);
+}
+
+} // namespace LXQt

lxqtbacklight.h

@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2016  P.L. Lucas
+ * 
+ * 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 __Backlight_H__
+#define __Backlight_H__
+
+#include <QObject>
+#include "lxqtglobals.h"
+
+namespace LXQt
+{
+class VirtualBackEnd;
+
+class LXQT_API Backlight : public QObject
+{
+Q_OBJECT
+
+public:    
+    Backlight(QObject *parent = 0);
+    ~Backlight();
+
+    bool isBacklightAvailable();
+    void setBacklight(int value);
+    int getBacklight();
+    int getMaxBacklight();
+
+signals:
+    void backlightChanged(int value);
+
+private slots:
+    void backlightChangedSlot(int value);
+
+private:
+    VirtualBackEnd *_backend;
+};
+
+} // namespace LXQt
+
+#endif  // __Backlight_H__

lxqtbacklight/linux_backend/driver/CMakeLists.txt

@@ -0,0 +1,21 @@
+
+project(lxqt-backlight_backend)
+
+set(C_FILES
+    lxqtbacklight_backend.c
+)
+
+include_directories(
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    ${CMAKE_CURRENT_BINARY_DIR}
+)
+
+if(NOT CMAKE_BUILD_TYPE)
+    set( CMAKE_BUILD_TYPE Release )
+endif (NOT CMAKE_BUILD_TYPE)
+
+add_executable(${PROJECT_NAME}
+    ${C_FILES}
+)
+
+install(TARGETS ${PROJECT_NAME} RUNTIME DESTINATION bin)