Reduce includes

src/equalizer/equalizer.cpp

@@ -41,8 +41,8 @@
 #include <QToolButton>
 #include <QCheckBox>
 #include <QComboBox>
+#include <QBoxLayout>
 #include <QSettings>
-#include <QtEvents>
 
 #include "core/iconloader.h"
 #include "equalizer.h"

src/equalizer/equalizer.h

@@ -26,13 +26,13 @@
 
 #include <QObject>
 #include <QDialog>
-#include <QWidget>
 #include <QList>
 #include <QMap>
 #include <QMetaType>
 #include <QDataStream>
 #include <QString>
 
+class QWidget;
 class QCloseEvent;
 
 class EqualizerSlider;

src/equalizer/equalizerslider.cpp

@@ -20,9 +20,11 @@
 
 #include "config.h"
 
+#include <QtGlobal>
 #include <QWidget>
 #include <QString>
 #include <QLabel>
+#include <QFontMetrics>
 
 #include "widgets/stickyslider.h"
 #include "equalizerslider.h"