Add 'Enable playlist background image' to preferences.

Fixes issue #365

data/mainwindow.css

@@ -8,12 +8,16 @@ darwin QMenu {
 
 #playlist {
   background-color: %palette-base;
+  alternate-background-color: %palette-alternate-base;
+
+}
+
+#playlist[background_enabled = "true"] {
   background-image: url(:logo.png);
   background-attachment: fixed;
   background-position: bottom right;
   background-repeat: none;
   background-clip: content;
-  alternate-background-color: %palette-alternate-base;
 }
 
 QToolButton {

src/playlist/playlistview.cpp

@@ -840,6 +840,7 @@ void PlaylistView::ReloadSettings() {
   QSettings s;
   s.beginGroup(Playlist::kSettingsGroup);
   glow_enabled_ = s.value("glow_effect", true).toBool();
+  background_enabled_ = s.value("bg_enabled", true).toBool();
   header_->SetStretchEnabled(s.value("stretch", true).toBool());
 
   if (currently_glowing_ && glow_enabled_ && isVisible())
@@ -847,6 +848,8 @@ void PlaylistView::ReloadSettings() {
   if (!glow_enabled_)
     StopGlowing();
 
+  setProperty("background_enabled", background_enabled_);
+  
   if (setting_initial_header_layout_) {
     header_->SetColumnWidth(Playlist::Column_Length, 0.06);
     header_->SetColumnWidth(Playlist::Column_Track, 0.05);
@@ -866,6 +869,8 @@ void PlaylistView::SaveSettings() {
   s.setValue("glow_effect", glow_enabled_);
   s.setValue("stretch", header_->is_stretch_enabled());
   s.setValue("column_alignments", QVariant::fromValue(playlist_->column_alignments()));
+  s.setValue("bg_enabled", background_enabled_);
+
 }
 
 void PlaylistView::StretchChanged(bool stretch) {

src/playlist/playlistview.h

@@ -55,7 +55,10 @@ private:
 
 class PlaylistView : public QTreeView {
   Q_OBJECT
-
+  Q_PROPERTY(bool background_enabled 
+             READ background_enabled 
+             WRITE set_background_enabled 
+             NOTIFY BackgroundPropertyChanged)
  public:
   PlaylistView(QWidget* parent = 0);
 
@@ -68,6 +71,7 @@ class PlaylistView : public QTreeView {
   void SetReadOnlySettings(bool read_only) { read_only_settings_ = read_only; }
 
   Playlist* playlist() const { return playlist_; }
+  bool      background_enabled() const { return background_enabled_; }
 
   // QTreeView
   void drawTree(QPainter* painter, const QRegion& region) const;
@@ -90,6 +94,7 @@ class PlaylistView : public QTreeView {
   void RightClicked(const QPoint& global_pos, const QModelIndex& index);
   void SeekTrack(int gap);
   void FocusOnFilterSignal(QKeyEvent *event);
+  void BackgroundPropertyChanged();
 
  protected:
   void contextMenuEvent(QContextMenuEvent* e);
@@ -129,6 +134,8 @@ class PlaylistView : public QTreeView {
   void UpdateCachedCurrentRowPixmap(QStyleOptionViewItemV4 option,
                                     const QModelIndex& index);
 
+  inline void set_background_enabled(bool bg) { background_enabled_ = bg; emit BackgroundPropertyChanged(); }
+
  private:
   static const int kGlowIntensitySteps;
   static const int kAutoscrollGraceTimeout;
@@ -147,6 +154,8 @@ class PlaylistView : public QTreeView {
   bool setting_initial_header_layout_;
   bool read_only_settings_;
 
+  bool background_enabled_;
+
   bool glow_enabled_;
   bool currently_glowing_;
   QBasicTimer glow_timer_;

src/ui/mainwindow.cpp

@@ -436,6 +436,7 @@ MainWindow::MainWindow(
   connect(ui_->playlist->view(), SIGNAL(PlayPause()), player_, SLOT(PlayPause()));
   connect(ui_->playlist->view(), SIGNAL(RightClicked(QPoint,QModelIndex)), SLOT(PlaylistRightClick(QPoint,QModelIndex)));
   connect(ui_->playlist->view(), SIGNAL(SeekTrack(int)), ui_->track_slider, SLOT(Seek(int)));
+  connect(ui_->playlist->view(), SIGNAL(BackgroundPropertyChanged()), SLOT(RefreshStyleSheet()));
 
   connect(ui_->track_slider, SIGNAL(ValueChanged(int)), player_, SLOT(SeekTo(int)));
 
@@ -716,6 +717,9 @@ MainWindow::MainWindow(
   // Reload pretty OSD to avoid issues with fonts
   osd_->ReloadPrettyOSDSettings();
 
+  // Reload playlist settings, for BG and glowing
+  ui_->playlist->view()->ReloadSettings();
+
 #ifndef Q_OS_DARWIN
   StartupBehaviour behaviour =
       StartupBehaviour(settings_.value("startupbehaviour", Startup_Remember).toInt());
@@ -798,6 +802,7 @@ void MainWindow::ReloadSettings() {
       s.value("doubleclick_playmode", PlayBehaviour_IfStopped).toInt());
   menu_playmode_ = PlayBehaviour(
       s.value("menu_playmode", PlayBehaviour_IfStopped).toInt());
+
 }
 
 void MainWindow::ReloadAllSettings() {
@@ -820,6 +825,9 @@ void MainWindow::ReloadAllSettings() {
 #endif
 }
 
+void MainWindow::RefreshStyleSheet() {
+  setStyleSheet(styleSheet());  
+}
 void MainWindow::MediaStopped() {
   setWindowTitle(QCoreApplication::applicationName());
 

src/ui/mainwindow.h

@@ -203,6 +203,7 @@ class MainWindow : public QMainWindow, public PlatformInterface {
   void ShowLibraryConfig();
   void ReloadSettings();
   void ReloadAllSettings();
+  void RefreshStyleSheet();
   void SetHiddenInTray() { SetHiddenInTray(true); }
 
   void AddFile();

src/ui/settingsdialog.cpp

@@ -366,6 +366,7 @@ void SettingsDialog::accept() {
   s.beginGroup(Playlist::kSettingsGroup);
   s.setValue("glow_effect", ui_->current_glow->isChecked());
   s.setValue("greyoutdeleted", ui_->b_grey_out_deleted_->isChecked());
+  s.setValue("bg_enabled", ui_->b_enable_background_img_->isChecked());
   s.endGroup();
 
   s.beginGroup(Engine::Base::kSettingsGroup);
@@ -556,6 +557,7 @@ void SettingsDialog::showEvent(QShowEvent*) {
   s.beginGroup(Playlist::kSettingsGroup);
   ui_->current_glow->setChecked(s.value("glow_effect", true).toBool());
   ui_->b_grey_out_deleted_->setChecked(s.value("greyoutdeleted", false).toBool());
+  ui_->b_enable_background_img_->setChecked(s.value("bg_enabled", true).toBool());
   s.endGroup();
 
   s.beginGroup(Engine::Base::kSettingsGroup);

src/ui/settingsdialog.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>742</width>
+    <width>827</width>
-    <height>638</height>
+    <height>768</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -125,7 +125,7 @@
      <item>
       <widget class="QStackedWidget" name="stacked_widget">
        <property name="currentIndex">
-        <number>4</number>
+        <number>1</number>
        </property>
        <widget class="QWidget" name="playback_page">
         <layout class="QVBoxLayout" name="verticalLayout_10">
@@ -424,6 +424,41 @@
            </property>
           </widget>
          </item>
+         <item>
+          <widget class="QCheckBox" name="b_enable_background_img_">
+           <property name="text">
+            <string>Enable playlist background image</string>
+           </property>
+           <property name="checked">
+            <bool>true</bool>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QGroupBox" name="groupBox_3">
+           <property name="title">
+            <string>Language</string>
+           </property>
+           <layout class="QVBoxLayout" name="verticalLayout_13">
+            <item>
+             <widget class="QComboBox" name="language">
+              <item>
+               <property name="text">
+                <string>Use the system default</string>
+               </property>
+              </item>
+             </widget>
+            </item>
+            <item>
+             <widget class="QLabel" name="label_10">
+              <property name="text">
+               <string>You will need to restart Clementine if you change the language.</string>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </widget>
+         </item>
          <item>
           <widget class="QGroupBox" name="startup_group_">
            <property name="title">
@@ -480,6 +515,37 @@
            </layout>
           </widget>
          </item>
+         <item>
+          <widget class="QGroupBox" name="groupBox_8">
+           <property name="title">
+            <string>Using the menu to add a song will...</string>
+           </property>
+           <layout class="QVBoxLayout" name="verticalLayout_18">
+            <item>
+             <widget class="QComboBox" name="menu_playmode">
+              <property name="currentIndex">
+               <number>0</number>
+              </property>
+              <item>
+               <property name="text">
+                <string>Never start playing</string>
+               </property>
+              </item>
+              <item>
+               <property name="text">
+                <string>Play if there is nothing already playing</string>
+               </property>
+              </item>
+              <item>
+               <property name="text">
+                <string>Always start playing</string>
+               </property>
+              </item>
+             </widget>
+            </item>
+           </layout>
+          </widget>
+         </item>
          <item>
           <widget class="QGroupBox" name="groupBox_7">
            <property name="title">
@@ -538,62 +604,6 @@
            </layout>
           </widget>
          </item>
-         <item>
-          <widget class="QGroupBox" name="groupBox_8">
-           <property name="title">
-            <string>Using the menu to add a song will...</string>
-           </property>
-           <layout class="QVBoxLayout" name="verticalLayout_18">
-            <item>
-             <widget class="QComboBox" name="menu_playmode">
-              <property name="currentIndex">
-               <number>0</number>
-              </property>
-              <item>
-               <property name="text">
-                <string>Never start playing</string>
-               </property>
-              </item>
-              <item>
-               <property name="text">
-                <string>Play if there is nothing already playing</string>
-               </property>
-              </item>
-              <item>
-               <property name="text">
-                <string>Always start playing</string>
-               </property>
-              </item>
-             </widget>
-            </item>
-           </layout>
-          </widget>
-         </item>
-         <item>
-          <widget class="QGroupBox" name="groupBox_3">
-           <property name="title">
-            <string>Language</string>
-           </property>
-           <layout class="QVBoxLayout" name="verticalLayout_13">
-            <item>
-             <widget class="QComboBox" name="language">
-              <item>
-               <property name="text">
-                <string>Use the system default</string>
-               </property>
-              </item>
-             </widget>
-            </item>
-            <item>
-             <widget class="QLabel" name="label_10">
-              <property name="text">
-               <string>You will need to restart Clementine if you change the language.</string>
-              </property>
-             </widget>
-            </item>
-           </layout>
-          </widget>
-         </item>
          <item>
           <spacer name="verticalSpacer_2">
            <property name="orientation">